Home / 8,437.50-12,663.96-4,280.38

Finding the Fourth Proportional to 8,437.50, 12,663.96 and 4,280.38

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Solution

The fourth proportional to 8,437.50, 12,663.96 and 4,280.38 is: 6,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.50 : 12,663.96 = 4,280.38 : x
  2. Step 2: Convert to fraction form
    8,437.50/12,663.96 = 4,280.38/x
  3. Step 3: Cross multiply
    8,437.50x = 12,663.96 × 4,280.38
  4. Step 4: Simplify right side
    8,437.50x = 54,206,561.10
  5. Step 5: Solve for x
    x = 54,206,561.10/8,437.50
  6. Step 6: Final answer
    x = 6,424.48

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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.