Home / 7,987.81-11,012.44-5,594.57

Finding the Fourth Proportional to 7,987.81, 11,012.44 and 5,594.57

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Solution

The fourth proportional to 7,987.81, 11,012.44 and 5,594.57 is: 7,712.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.81 : 11,012.44 = 5,594.57 : x
  2. Step 2: Convert to fraction form
    7,987.81/11,012.44 = 5,594.57/x
  3. Step 3: Cross multiply
    7,987.81x = 11,012.44 × 5,594.57
  4. Step 4: Simplify right side
    7,987.81x = 61,609,866.45
  5. Step 5: Solve for x
    x = 61,609,866.45/7,987.81
  6. Step 6: Final answer
    x = 7,712.99

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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.