Home / 16,870.56-25,321.19-8,979.71

Finding the Fourth Proportional to 16,870.56, 25,321.19 and 8,979.71

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Solution

The fourth proportional to 16,870.56, 25,321.19 and 8,979.71 is: 13,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.56 : 25,321.19 = 8,979.71 : x
  2. Step 2: Convert to fraction form
    16,870.56/25,321.19 = 8,979.71/x
  3. Step 3: Cross multiply
    16,870.56x = 25,321.19 × 8,979.71
  4. Step 4: Simplify right side
    16,870.56x = 227,376,964.49
  5. Step 5: Solve for x
    x = 227,376,964.49/16,870.56
  6. Step 6: Final answer
    x = 13,477.74

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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.