Home / 15,549.51-21,454.50-9,498.21

Finding the Fourth Proportional to 15,549.51, 21,454.50 and 9,498.21

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Solution

The fourth proportional to 15,549.51, 21,454.50 and 9,498.21 is: 13,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.51 : 21,454.50 = 9,498.21 : x
  2. Step 2: Convert to fraction form
    15,549.51/21,454.50 = 9,498.21/x
  3. Step 3: Cross multiply
    15,549.51x = 21,454.50 × 9,498.21
  4. Step 4: Simplify right side
    15,549.51x = 203,779,346.45
  5. Step 5: Solve for x
    x = 203,779,346.45/15,549.51
  6. Step 6: Final answer
    x = 13,105.19

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Half scale
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Double scale
Find fourth proportional to 15,550.51, 21,455.88 and 9,499.21
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.