Home / 12,695.14-17,552.74-11,118.72

Finding the Fourth Proportional to 12,695.14, 17,552.74 and 11,118.72

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Solution

The fourth proportional to 12,695.14, 17,552.74 and 11,118.72 is: 15,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.14 : 17,552.74 = 11,118.72 : x
  2. Step 2: Convert to fraction form
    12,695.14/17,552.74 = 11,118.72/x
  3. Step 3: Cross multiply
    12,695.14x = 17,552.74 × 11,118.72
  4. Step 4: Simplify right side
    12,695.14x = 195,164,001.29
  5. Step 5: Solve for x
    x = 195,164,001.29/12,695.14
  6. Step 6: Final answer
    x = 15,373.13

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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.