Home / 12,634.02-17,432.70-8,868.78

Finding the Fourth Proportional to 12,634.02, 17,432.70 and 8,868.78

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Solution

The fourth proportional to 12,634.02, 17,432.70 and 8,868.78 is: 12,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.02 : 17,432.70 = 8,868.78 : x
  2. Step 2: Convert to fraction form
    12,634.02/17,432.70 = 8,868.78/x
  3. Step 3: Cross multiply
    12,634.02x = 17,432.70 × 8,868.78
  4. Step 4: Simplify right side
    12,634.02x = 154,606,781.11
  5. Step 5: Solve for x
    x = 154,606,781.11/12,634.02
  6. Step 6: Final answer
    x = 12,237.34

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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.