Home / 10,572.40-14,545.20-10,280.80

Finding the Fourth Proportional to 10,572.40, 14,545.20 and 10,280.80

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Solution

The fourth proportional to 10,572.40, 14,545.20 and 10,280.80 is: 14,144.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.40 : 14,545.20 = 10,280.80 : x
  2. Step 2: Convert to fraction form
    10,572.40/14,545.20 = 10,280.80/x
  3. Step 3: Cross multiply
    10,572.40x = 14,545.20 × 10,280.80
  4. Step 4: Simplify right side
    10,572.40x = 149,536,292.16
  5. Step 5: Solve for x
    x = 149,536,292.16/10,572.40
  6. Step 6: Final answer
    x = 14,144.03

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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.