Home / 10,326.40-15,488.99-3,400.90

Finding the Fourth Proportional to 10,326.40, 15,488.99 and 3,400.90

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Solution

The fourth proportional to 10,326.40, 15,488.99 and 3,400.90 is: 5,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.40 : 15,488.99 = 3,400.90 : x
  2. Step 2: Convert to fraction form
    10,326.40/15,488.99 = 3,400.90/x
  3. Step 3: Cross multiply
    10,326.40x = 15,488.99 × 3,400.90
  4. Step 4: Simplify right side
    10,326.40x = 52,676,463.12
  5. Step 5: Solve for x
    x = 52,676,463.12/10,326.40
  6. Step 6: Final answer
    x = 5,101.15

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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.