Home / 14,325.67-21,488.17-8,439.88

Finding the Fourth Proportional to 14,325.67, 21,488.17 and 8,439.88

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Solution

The fourth proportional to 14,325.67, 21,488.17 and 8,439.88 is: 12,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.67 : 21,488.17 = 8,439.88 : x
  2. Step 2: Convert to fraction form
    14,325.67/21,488.17 = 8,439.88/x
  3. Step 3: Cross multiply
    14,325.67x = 21,488.17 × 8,439.88
  4. Step 4: Simplify right side
    14,325.67x = 181,357,576.22
  5. Step 5: Solve for x
    x = 181,357,576.22/14,325.67
  6. Step 6: Final answer
    x = 12,659.62

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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.