Home / 13,656.08-20,487.65-7,414.49

Finding the Fourth Proportional to 13,656.08, 20,487.65 and 7,414.49

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Solution

The fourth proportional to 13,656.08, 20,487.65 and 7,414.49 is: 11,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.08 : 20,487.65 = 7,414.49 : x
  2. Step 2: Convert to fraction form
    13,656.08/20,487.65 = 7,414.49/x
  3. Step 3: Cross multiply
    13,656.08x = 20,487.65 × 7,414.49
  4. Step 4: Simplify right side
    13,656.08x = 151,905,490.20
  5. Step 5: Solve for x
    x = 151,905,490.20/13,656.08
  6. Step 6: Final answer
    x = 11,123.65

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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.