Home / 11,022.91-15,211.74-5,987.19

Finding the Fourth Proportional to 11,022.91, 15,211.74 and 5,987.19

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Solution

The fourth proportional to 11,022.91, 15,211.74 and 5,987.19 is: 8,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.91 : 15,211.74 = 5,987.19 : x
  2. Step 2: Convert to fraction form
    11,022.91/15,211.74 = 5,987.19/x
  3. Step 3: Cross multiply
    11,022.91x = 15,211.74 × 5,987.19
  4. Step 4: Simplify right side
    11,022.91x = 91,075,577.61
  5. Step 5: Solve for x
    x = 91,075,577.61/11,022.91
  6. Step 6: Final answer
    x = 8,262.39

Related Problems

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Half scale
Find fourth proportional to 22,045.82, 30,423.48 and 11,974.38
Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.