Home / 12,341.13-17,037.62-7,809.82

Finding the Fourth Proportional to 12,341.13, 17,037.62 and 7,809.82

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Solution

The fourth proportional to 12,341.13, 17,037.62 and 7,809.82 is: 10,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.13 : 17,037.62 = 7,809.82 : x
  2. Step 2: Convert to fraction form
    12,341.13/17,037.62 = 7,809.82/x
  3. Step 3: Cross multiply
    12,341.13x = 17,037.62 × 7,809.82
  4. Step 4: Simplify right side
    12,341.13x = 133,060,671.11
  5. Step 5: Solve for x
    x = 133,060,671.11/12,341.13
  6. Step 6: Final answer
    x = 10,781.88

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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.