Home / 13,397.04-18,488.51-7,428.33

Finding the Fourth Proportional to 13,397.04, 18,488.51 and 7,428.33

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Solution

The fourth proportional to 13,397.04, 18,488.51 and 7,428.33 is: 10,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.04 : 18,488.51 = 7,428.33 : x
  2. Step 2: Convert to fraction form
    13,397.04/18,488.51 = 7,428.33/x
  3. Step 3: Cross multiply
    13,397.04x = 18,488.51 × 7,428.33
  4. Step 4: Simplify right side
    13,397.04x = 137,338,753.49
  5. Step 5: Solve for x
    x = 137,338,753.49/13,397.04
  6. Step 6: Final answer
    x = 10,251.43

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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.