Home / 15,473.47-21,353.90-8,758.96

Finding the Fourth Proportional to 15,473.47, 21,353.90 and 8,758.96

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Solution

The fourth proportional to 15,473.47, 21,353.90 and 8,758.96 is: 12,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.47 : 21,353.90 = 8,758.96 : x
  2. Step 2: Convert to fraction form
    15,473.47/21,353.90 = 8,758.96/x
  3. Step 3: Cross multiply
    15,473.47x = 21,353.90 × 8,758.96
  4. Step 4: Simplify right side
    15,473.47x = 187,037,992.73
  5. Step 5: Solve for x
    x = 187,037,992.73/15,473.47
  6. Step 6: Final answer
    x = 12,087.65

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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.