Home / 12,329.29-17,014.53-11,387.51

Finding the Fourth Proportional to 12,329.29, 17,014.53 and 11,387.51

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Solution

The fourth proportional to 12,329.29, 17,014.53 and 11,387.51 is: 15,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.29 : 17,014.53 = 11,387.51 : x
  2. Step 2: Convert to fraction form
    12,329.29/17,014.53 = 11,387.51/x
  3. Step 3: Cross multiply
    12,329.29x = 17,014.53 × 11,387.51
  4. Step 4: Simplify right side
    12,329.29x = 193,753,130.52
  5. Step 5: Solve for x
    x = 193,753,130.52/12,329.29
  6. Step 6: Final answer
    x = 15,714.87

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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.