Home / 13,531.29-20,304.18-5,639.26

Finding the Fourth Proportional to 13,531.29, 20,304.18 and 5,639.26

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Solution

The fourth proportional to 13,531.29, 20,304.18 and 5,639.26 is: 8,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.29 : 20,304.18 = 5,639.26 : x
  2. Step 2: Convert to fraction form
    13,531.29/20,304.18 = 5,639.26/x
  3. Step 3: Cross multiply
    13,531.29x = 20,304.18 × 5,639.26
  4. Step 4: Simplify right side
    13,531.29x = 114,500,550.11
  5. Step 5: Solve for x
    x = 114,500,550.11/13,531.29
  6. Step 6: Final answer
    x = 8,461.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.