Home / 12,398.13-18,588.29-5,820.66

Finding the Fourth Proportional to 12,398.13, 18,588.29 and 5,820.66

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Solution

The fourth proportional to 12,398.13, 18,588.29 and 5,820.66 is: 8,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.13 : 18,588.29 = 5,820.66 : x
  2. Step 2: Convert to fraction form
    12,398.13/18,588.29 = 5,820.66/x
  3. Step 3: Cross multiply
    12,398.13x = 18,588.29 × 5,820.66
  4. Step 4: Simplify right side
    12,398.13x = 108,196,086.97
  5. Step 5: Solve for x
    x = 108,196,086.97/12,398.13
  6. Step 6: Final answer
    x = 8,726.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.