Home / 15,908.38-23,856.56-12,780.70

Finding the Fourth Proportional to 15,908.38, 23,856.56 and 12,780.70

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Solution

The fourth proportional to 15,908.38, 23,856.56 and 12,780.70 is: 19,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.38 : 23,856.56 = 12,780.70 : x
  2. Step 2: Convert to fraction form
    15,908.38/23,856.56 = 12,780.70/x
  3. Step 3: Cross multiply
    15,908.38x = 23,856.56 × 12,780.70
  4. Step 4: Simplify right side
    15,908.38x = 304,903,449.06
  5. Step 5: Solve for x
    x = 304,903,449.06/15,908.38
  6. Step 6: Final answer
    x = 19,166.22

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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.