Home / 13,146.92-19,719.02-4,380.88

Finding the Fourth Proportional to 13,146.92, 19,719.02 and 4,380.88

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Solution

The fourth proportional to 13,146.92, 19,719.02 and 4,380.88 is: 6,570.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.92 : 19,719.02 = 4,380.88 : x
  2. Step 2: Convert to fraction form
    13,146.92/19,719.02 = 4,380.88/x
  3. Step 3: Cross multiply
    13,146.92x = 19,719.02 × 4,380.88
  4. Step 4: Simplify right side
    13,146.92x = 86,386,660.34
  5. Step 5: Solve for x
    x = 86,386,660.34/13,146.92
  6. Step 6: Final answer
    x = 6,570.87

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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.