Home / 8,132.32-11,218.48-5,143.12

Finding the Fourth Proportional to 8,132.32, 11,218.48 and 5,143.12

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Solution

The fourth proportional to 8,132.32, 11,218.48 and 5,143.12 is: 7,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.32 : 11,218.48 = 5,143.12 : x
  2. Step 2: Convert to fraction form
    8,132.32/11,218.48 = 5,143.12/x
  3. Step 3: Cross multiply
    8,132.32x = 11,218.48 × 5,143.12
  4. Step 4: Simplify right side
    8,132.32x = 57,697,988.86
  5. Step 5: Solve for x
    x = 57,697,988.86/8,132.32
  6. Step 6: Final answer
    x = 7,094.90

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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.