Home / 14,122.38-19,488.08-7,747.71

Finding the Fourth Proportional to 14,122.38, 19,488.08 and 7,747.71

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Solution

The fourth proportional to 14,122.38, 19,488.08 and 7,747.71 is: 10,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.38 : 19,488.08 = 7,747.71 : x
  2. Step 2: Convert to fraction form
    14,122.38/19,488.08 = 7,747.71/x
  3. Step 3: Cross multiply
    14,122.38x = 19,488.08 × 7,747.71
  4. Step 4: Simplify right side
    14,122.38x = 150,987,953.56
  5. Step 5: Solve for x
    x = 150,987,953.56/14,122.38
  6. Step 6: Final answer
    x = 10,691.40

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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.