Home / 13,545.34-20,294.76-12,175.78

Finding the Fourth Proportional to 13,545.34, 20,294.76 and 12,175.78

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Solution

The fourth proportional to 13,545.34, 20,294.76 and 12,175.78 is: 18,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.34 : 20,294.76 = 12,175.78 : x
  2. Step 2: Convert to fraction form
    13,545.34/20,294.76 = 12,175.78/x
  3. Step 3: Cross multiply
    13,545.34x = 20,294.76 × 12,175.78
  4. Step 4: Simplify right side
    13,545.34x = 247,104,532.91
  5. Step 5: Solve for x
    x = 247,104,532.91/13,545.34
  6. Step 6: Final answer
    x = 18,242.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.