Home / 14,202.52-21,280.23-8,639.03

Finding the Fourth Proportional to 14,202.52, 21,280.23 and 8,639.03

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Solution

The fourth proportional to 14,202.52, 21,280.23 and 8,639.03 is: 12,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,202.52 : 21,280.23 = 8,639.03 : x
  2. Step 2: Convert to fraction form
    14,202.52/21,280.23 = 8,639.03/x
  3. Step 3: Cross multiply
    14,202.52x = 21,280.23 × 8,639.03
  4. Step 4: Simplify right side
    14,202.52x = 183,840,545.38
  5. Step 5: Solve for x
    x = 183,840,545.38/14,202.52
  6. Step 6: Final answer
    x = 12,944.22

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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.