Home / 12,723.78-17,552.84-8,248.98

Finding the Fourth Proportional to 12,723.78, 17,552.84 and 8,248.98

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Solution

The fourth proportional to 12,723.78, 17,552.84 and 8,248.98 is: 11,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.78 : 17,552.84 = 8,248.98 : x
  2. Step 2: Convert to fraction form
    12,723.78/17,552.84 = 8,248.98/x
  3. Step 3: Cross multiply
    12,723.78x = 17,552.84 × 8,248.98
  4. Step 4: Simplify right side
    12,723.78x = 144,793,026.10
  5. Step 5: Solve for x
    x = 144,793,026.10/12,723.78
  6. Step 6: Final answer
    x = 11,379.72

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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.