Home / 13,488.08-18,614.36-7,519.73

Finding the Fourth Proportional to 13,488.08, 18,614.36 and 7,519.73

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Solution

The fourth proportional to 13,488.08, 18,614.36 and 7,519.73 is: 10,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.08 : 18,614.36 = 7,519.73 : x
  2. Step 2: Convert to fraction form
    13,488.08/18,614.36 = 7,519.73/x
  3. Step 3: Cross multiply
    13,488.08x = 18,614.36 × 7,519.73
  4. Step 4: Simplify right side
    13,488.08x = 139,974,868.25
  5. Step 5: Solve for x
    x = 139,974,868.25/13,488.08
  6. Step 6: Final answer
    x = 10,377.68

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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.