Home / 11,988.22-16,545.90-7,515.85

Finding the Fourth Proportional to 11,988.22, 16,545.90 and 7,515.85

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Solution

The fourth proportional to 11,988.22, 16,545.90 and 7,515.85 is: 10,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.22 : 16,545.90 = 7,515.85 : x
  2. Step 2: Convert to fraction form
    11,988.22/16,545.90 = 7,515.85/x
  3. Step 3: Cross multiply
    11,988.22x = 16,545.90 × 7,515.85
  4. Step 4: Simplify right side
    11,988.22x = 124,356,502.52
  5. Step 5: Solve for x
    x = 124,356,502.52/11,988.22
  6. Step 6: Final answer
    x = 10,373.22

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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.