Home / 8,359.92-12,538.08-3,424.80

Finding the Fourth Proportional to 8,359.92, 12,538.08 and 3,424.80

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Solution

The fourth proportional to 8,359.92, 12,538.08 and 3,424.80 is: 5,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.92 : 12,538.08 = 3,424.80 : x
  2. Step 2: Convert to fraction form
    8,359.92/12,538.08 = 3,424.80/x
  3. Step 3: Cross multiply
    8,359.92x = 12,538.08 × 3,424.80
  4. Step 4: Simplify right side
    8,359.92x = 42,940,416.38
  5. Step 5: Solve for x
    x = 42,940,416.38/8,359.92
  6. Step 6: Final answer
    x = 5,136.46

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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.