Home / 12,545.47-18,817.75-4,225.29

Finding the Fourth Proportional to 12,545.47, 18,817.75 and 4,225.29

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Solution

The fourth proportional to 12,545.47, 18,817.75 and 4,225.29 is: 6,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.47 : 18,817.75 = 4,225.29 : x
  2. Step 2: Convert to fraction form
    12,545.47/18,817.75 = 4,225.29/x
  3. Step 3: Cross multiply
    12,545.47x = 18,817.75 × 4,225.29
  4. Step 4: Simplify right side
    12,545.47x = 79,510,450.90
  5. Step 5: Solve for x
    x = 79,510,450.90/12,545.47
  6. Step 6: Final answer
    x = 6,337.78

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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.