Home / 11,000.28-16,387.80-10,471.32

Finding the Fourth Proportional to 11,000.28, 16,387.80 and 10,471.32

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Solution

The fourth proportional to 11,000.28, 16,387.80 and 10,471.32 is: 15,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.28 : 16,387.80 = 10,471.32 : x
  2. Step 2: Convert to fraction form
    11,000.28/16,387.80 = 10,471.32/x
  3. Step 3: Cross multiply
    11,000.28x = 16,387.80 × 10,471.32
  4. Step 4: Simplify right side
    11,000.28x = 171,601,897.90
  5. Step 5: Solve for x
    x = 171,601,897.90/11,000.28
  6. Step 6: Final answer
    x = 15,599.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.