Home / 11,989.60-16,538.52-9,332.80

Finding the Fourth Proportional to 11,989.60, 16,538.52 and 9,332.80

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Solution

The fourth proportional to 11,989.60, 16,538.52 and 9,332.80 is: 12,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.60 : 16,538.52 = 9,332.80 : x
  2. Step 2: Convert to fraction form
    11,989.60/16,538.52 = 9,332.80/x
  3. Step 3: Cross multiply
    11,989.60x = 16,538.52 × 9,332.80
  4. Step 4: Simplify right side
    11,989.60x = 154,350,699.46
  5. Step 5: Solve for x
    x = 154,350,699.46/11,989.60
  6. Step 6: Final answer
    x = 12,873.72

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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.