Home / 12,356.89-17,052.51-6,691.68

Finding the Fourth Proportional to 12,356.89, 17,052.51 and 6,691.68

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Solution

The fourth proportional to 12,356.89, 17,052.51 and 6,691.68 is: 9,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.89 : 17,052.51 = 6,691.68 : x
  2. Step 2: Convert to fraction form
    12,356.89/17,052.51 = 6,691.68/x
  3. Step 3: Cross multiply
    12,356.89x = 17,052.51 × 6,691.68
  4. Step 4: Simplify right side
    12,356.89x = 114,109,965.21
  5. Step 5: Solve for x
    x = 114,109,965.21/12,356.89
  6. Step 6: Final answer
    x = 9,234.52

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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.