Home / 14,961.60-20,655.60-9,932.61

Finding the Fourth Proportional to 14,961.60, 20,655.60 and 9,932.61

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Solution

The fourth proportional to 14,961.60, 20,655.60 and 9,932.61 is: 13,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.60 : 20,655.60 = 9,932.61 : x
  2. Step 2: Convert to fraction form
    14,961.60/20,655.60 = 9,932.61/x
  3. Step 3: Cross multiply
    14,961.60x = 20,655.60 × 9,932.61
  4. Step 4: Simplify right side
    14,961.60x = 205,164,019.12
  5. Step 5: Solve for x
    x = 205,164,019.12/14,961.60
  6. Step 6: Final answer
    x = 13,712.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.