Home / 13,397.27-18,488.66-7,429.49

Finding the Fourth Proportional to 13,397.27, 18,488.66 and 7,429.49

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Solution

The fourth proportional to 13,397.27, 18,488.66 and 7,429.49 is: 10,252.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.27 : 18,488.66 = 7,429.49 : x
  2. Step 2: Convert to fraction form
    13,397.27/18,488.66 = 7,429.49/x
  3. Step 3: Cross multiply
    13,397.27x = 18,488.66 × 7,429.49
  4. Step 4: Simplify right side
    13,397.27x = 137,361,254.33
  5. Step 5: Solve for x
    x = 137,361,254.33/13,397.27
  6. Step 6: Final answer
    x = 10,252.93

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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.