Home / 11,133.52-16,688.40-3,731.20

Finding the Fourth Proportional to 11,133.52, 16,688.40 and 3,731.20

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Solution

The fourth proportional to 11,133.52, 16,688.40 and 3,731.20 is: 5,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.52 : 16,688.40 = 3,731.20 : x
  2. Step 2: Convert to fraction form
    11,133.52/16,688.40 = 3,731.20/x
  3. Step 3: Cross multiply
    11,133.52x = 16,688.40 × 3,731.20
  4. Step 4: Simplify right side
    11,133.52x = 62,267,758.08
  5. Step 5: Solve for x
    x = 62,267,758.08/11,133.52
  6. Step 6: Final answer
    x = 5,592.82

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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.