Home / 12,972.68-19,422.28-10,084.76

Finding the Fourth Proportional to 12,972.68, 19,422.28 and 10,084.76

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Solution

The fourth proportional to 12,972.68, 19,422.28 and 10,084.76 is: 15,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.68 : 19,422.28 = 10,084.76 : x
  2. Step 2: Convert to fraction form
    12,972.68/19,422.28 = 10,084.76/x
  3. Step 3: Cross multiply
    12,972.68x = 19,422.28 × 10,084.76
  4. Step 4: Simplify right side
    12,972.68x = 195,869,032.45
  5. Step 5: Solve for x
    x = 195,869,032.45/12,972.68
  6. Step 6: Final answer
    x = 15,098.58

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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.