Home / 11,123.79-16,686.57-3,728.28

Finding the Fourth Proportional to 11,123.79, 16,686.57 and 3,728.28

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Solution

The fourth proportional to 11,123.79, 16,686.57 and 3,728.28 is: 5,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.79 : 16,686.57 = 3,728.28 : x
  2. Step 2: Convert to fraction form
    11,123.79/16,686.57 = 3,728.28/x
  3. Step 3: Cross multiply
    11,123.79x = 16,686.57 × 3,728.28
  4. Step 4: Simplify right side
    11,123.79x = 62,212,205.20
  5. Step 5: Solve for x
    x = 62,212,205.20/11,123.79
  6. Step 6: Final answer
    x = 5,592.72

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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.