Home / 13,386.71-20,110.85-9,447.04

Finding the Fourth Proportional to 13,386.71, 20,110.85 and 9,447.04

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Solution

The fourth proportional to 13,386.71, 20,110.85 and 9,447.04 is: 14,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.71 : 20,110.85 = 9,447.04 : x
  2. Step 2: Convert to fraction form
    13,386.71/20,110.85 = 9,447.04/x
  3. Step 3: Cross multiply
    13,386.71x = 20,110.85 × 9,447.04
  4. Step 4: Simplify right side
    13,386.71x = 189,988,004.38
  5. Step 5: Solve for x
    x = 189,988,004.38/13,386.71
  6. Step 6: Final answer
    x = 14,192.29

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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.