Home / 12,881.32-19,278.22-9,972.60

Finding the Fourth Proportional to 12,881.32, 19,278.22 and 9,972.60

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Solution

The fourth proportional to 12,881.32, 19,278.22 and 9,972.60 is: 14,925.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.32 : 19,278.22 = 9,972.60 : x
  2. Step 2: Convert to fraction form
    12,881.32/19,278.22 = 9,972.60/x
  3. Step 3: Cross multiply
    12,881.32x = 19,278.22 × 9,972.60
  4. Step 4: Simplify right side
    12,881.32x = 192,253,976.77
  5. Step 5: Solve for x
    x = 192,253,976.77/12,881.32
  6. Step 6: Final answer
    x = 14,925.02

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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.