Home / 8,359.05-12,538.65-3,426.76

Finding the Fourth Proportional to 8,359.05, 12,538.65 and 3,426.76

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Solution

The fourth proportional to 8,359.05, 12,538.65 and 3,426.76 is: 5,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.05 : 12,538.65 = 3,426.76 : x
  2. Step 2: Convert to fraction form
    8,359.05/12,538.65 = 3,426.76/x
  3. Step 3: Cross multiply
    8,359.05x = 12,538.65 × 3,426.76
  4. Step 4: Simplify right side
    8,359.05x = 42,966,882.99
  5. Step 5: Solve for x
    x = 42,966,882.99/8,359.05
  6. Step 6: Final answer
    x = 5,140.16

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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.