Home / 12,115.60-16,736.52-9,356.56

Finding the Fourth Proportional to 12,115.60, 16,736.52 and 9,356.56

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Solution

The fourth proportional to 12,115.60, 16,736.52 and 9,356.56 is: 12,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.60 : 16,736.52 = 9,356.56 : x
  2. Step 2: Convert to fraction form
    12,115.60/16,736.52 = 9,356.56/x
  3. Step 3: Cross multiply
    12,115.60x = 16,736.52 × 9,356.56
  4. Step 4: Simplify right side
    12,115.60x = 156,596,253.57
  5. Step 5: Solve for x
    x = 156,596,253.57/12,115.60
  6. Step 6: Final answer
    x = 12,925.18

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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.