Home / 13,397.13-18,486.61-7,427.22

Finding the Fourth Proportional to 13,397.13, 18,486.61 and 7,427.22

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Solution

The fourth proportional to 13,397.13, 18,486.61 and 7,427.22 is: 10,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.13 : 18,486.61 = 7,427.22 : x
  2. Step 2: Convert to fraction form
    13,397.13/18,486.61 = 7,427.22/x
  3. Step 3: Cross multiply
    13,397.13x = 18,486.61 × 7,427.22
  4. Step 4: Simplify right side
    13,397.13x = 137,304,082.39
  5. Step 5: Solve for x
    x = 137,304,082.39/13,397.13
  6. Step 6: Final answer
    x = 10,248.77

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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.