Home / 13,537.28-18,681.85-7,487.71

Finding the Fourth Proportional to 13,537.28, 18,681.85 and 7,487.71

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Solution

The fourth proportional to 13,537.28, 18,681.85 and 7,487.71 is: 10,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.28 : 18,681.85 = 7,487.71 : x
  2. Step 2: Convert to fraction form
    13,537.28/18,681.85 = 7,487.71/x
  3. Step 3: Cross multiply
    13,537.28x = 18,681.85 × 7,487.71
  4. Step 4: Simplify right side
    13,537.28x = 139,884,237.72
  5. Step 5: Solve for x
    x = 139,884,237.72/13,537.28
  6. Step 6: Final answer
    x = 10,333.26

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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.