Home / 15,438.25-21,304.50-8,723.73

Finding the Fourth Proportional to 15,438.25, 21,304.50 and 8,723.73

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Solution

The fourth proportional to 15,438.25, 21,304.50 and 8,723.73 is: 12,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.25 : 21,304.50 = 8,723.73 : x
  2. Step 2: Convert to fraction form
    15,438.25/21,304.50 = 8,723.73/x
  3. Step 3: Cross multiply
    15,438.25x = 21,304.50 × 8,723.73
  4. Step 4: Simplify right side
    15,438.25x = 185,854,633.13
  5. Step 5: Solve for x
    x = 185,854,633.13/15,438.25
  6. Step 6: Final answer
    x = 12,038.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.