Home / 10,387.17-15,582.80-3,813.41

Finding the Fourth Proportional to 10,387.17, 15,582.80 and 3,813.41

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Solution

The fourth proportional to 10,387.17, 15,582.80 and 3,813.41 is: 5,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.17 : 15,582.80 = 3,813.41 : x
  2. Step 2: Convert to fraction form
    10,387.17/15,582.80 = 3,813.41/x
  3. Step 3: Cross multiply
    10,387.17x = 15,582.80 × 3,813.41
  4. Step 4: Simplify right side
    10,387.17x = 59,423,625.24
  5. Step 5: Solve for x
    x = 59,423,625.24/10,387.17
  6. Step 6: Final answer
    x = 5,720.87

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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.