Home / 12,863.02-17,750.90-7,197.76

Finding the Fourth Proportional to 12,863.02, 17,750.90 and 7,197.76

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Solution

The fourth proportional to 12,863.02, 17,750.90 and 7,197.76 is: 9,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.02 : 17,750.90 = 7,197.76 : x
  2. Step 2: Convert to fraction form
    12,863.02/17,750.90 = 7,197.76/x
  3. Step 3: Cross multiply
    12,863.02x = 17,750.90 × 7,197.76
  4. Step 4: Simplify right side
    12,863.02x = 127,766,717.98
  5. Step 5: Solve for x
    x = 127,766,717.98/12,863.02
  6. Step 6: Final answer
    x = 9,932.87

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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.