Home / 10,387.47-15,577.56-2,989.95

Finding the Fourth Proportional to 10,387.47, 15,577.56 and 2,989.95

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Solution

The fourth proportional to 10,387.47, 15,577.56 and 2,989.95 is: 4,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.47 : 15,577.56 = 2,989.95 : x
  2. Step 2: Convert to fraction form
    10,387.47/15,577.56 = 2,989.95/x
  3. Step 3: Cross multiply
    10,387.47x = 15,577.56 × 2,989.95
  4. Step 4: Simplify right side
    10,387.47x = 46,576,125.52
  5. Step 5: Solve for x
    x = 46,576,125.52/10,387.47
  6. Step 6: Final answer
    x = 4,483.88

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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.