Home / 10,468.28-15,700.80-9,889.94

Finding the Fourth Proportional to 10,468.28, 15,700.80 and 9,889.94

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Solution

The fourth proportional to 10,468.28, 15,700.80 and 9,889.94 is: 14,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468.28 : 15,700.80 = 9,889.94 : x
  2. Step 2: Convert to fraction form
    10,468.28/15,700.80 = 9,889.94/x
  3. Step 3: Cross multiply
    10,468.28x = 15,700.80 × 9,889.94
  4. Step 4: Simplify right side
    10,468.28x = 155,279,969.95
  5. Step 5: Solve for x
    x = 155,279,969.95/10,468.28
  6. Step 6: Final answer
    x = 14,833.38

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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.