Home / 12,327.29-17,011.77-11,385.51

Finding the Fourth Proportional to 12,327.29, 17,011.77 and 11,385.51

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Solution

The fourth proportional to 12,327.29, 17,011.77 and 11,385.51 is: 15,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327.29 : 17,011.77 = 11,385.51 : x
  2. Step 2: Convert to fraction form
    12,327.29/17,011.77 = 11,385.51/x
  3. Step 3: Cross multiply
    12,327.29x = 17,011.77 × 11,385.51
  4. Step 4: Simplify right side
    12,327.29x = 193,687,620.53
  5. Step 5: Solve for x
    x = 193,687,620.53/12,327.29
  6. Step 6: Final answer
    x = 15,712.10

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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.