Home / 13,132.17-18,108.32-8,648.12

Finding the Fourth Proportional to 13,132.17, 18,108.32 and 8,648.12

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Solution

The fourth proportional to 13,132.17, 18,108.32 and 8,648.12 is: 11,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.17 : 18,108.32 = 8,648.12 : x
  2. Step 2: Convert to fraction form
    13,132.17/18,108.32 = 8,648.12/x
  3. Step 3: Cross multiply
    13,132.17x = 18,108.32 × 8,648.12
  4. Step 4: Simplify right side
    13,132.17x = 156,602,926.39
  5. Step 5: Solve for x
    x = 156,602,926.39/13,132.17
  6. Step 6: Final answer
    x = 11,925.14

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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.