Home / 11,000.28-16,490.40-5,729.10

Finding the Fourth Proportional to 11,000.28, 16,490.40 and 5,729.10

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Solution

The fourth proportional to 11,000.28, 16,490.40 and 5,729.10 is: 8,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.28 : 16,490.40 = 5,729.10 : x
  2. Step 2: Convert to fraction form
    11,000.28/16,490.40 = 5,729.10/x
  3. Step 3: Cross multiply
    11,000.28x = 16,490.40 × 5,729.10
  4. Step 4: Simplify right side
    11,000.28x = 94,475,150.64
  5. Step 5: Solve for x
    x = 94,475,150.64/11,000.28
  6. Step 6: Final answer
    x = 8,588.43

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1.5x scale

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.