Home / 11,948.38-16,488.85-7,474.68

Finding the Fourth Proportional to 11,948.38, 16,488.85 and 7,474.68

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Solution

The fourth proportional to 11,948.38, 16,488.85 and 7,474.68 is: 10,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.38 : 16,488.85 = 7,474.68 : x
  2. Step 2: Convert to fraction form
    11,948.38/16,488.85 = 7,474.68/x
  3. Step 3: Cross multiply
    11,948.38x = 16,488.85 × 7,474.68
  4. Step 4: Simplify right side
    11,948.38x = 123,248,794.87
  5. Step 5: Solve for x
    x = 123,248,794.87/11,948.38
  6. Step 6: Final answer
    x = 10,315.11

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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.