Home / 12,392.06-17,108.19-9,402.66

Finding the Fourth Proportional to 12,392.06, 17,108.19 and 9,402.66

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Solution

The fourth proportional to 12,392.06, 17,108.19 and 9,402.66 is: 12,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.06 : 17,108.19 = 9,402.66 : x
  2. Step 2: Convert to fraction form
    12,392.06/17,108.19 = 9,402.66/x
  3. Step 3: Cross multiply
    12,392.06x = 17,108.19 × 9,402.66
  4. Step 4: Simplify right side
    12,392.06x = 160,862,493.79
  5. Step 5: Solve for x
    x = 160,862,493.79/12,392.06
  6. Step 6: Final answer
    x = 12,981.10

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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.