Home / 8,663.22-11,958.30-5,129.46

Finding the Fourth Proportional to 8,663.22, 11,958.30 and 5,129.46

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Solution

The fourth proportional to 8,663.22, 11,958.30 and 5,129.46 is: 7,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.22 : 11,958.30 = 5,129.46 : x
  2. Step 2: Convert to fraction form
    8,663.22/11,958.30 = 5,129.46/x
  3. Step 3: Cross multiply
    8,663.22x = 11,958.30 × 5,129.46
  4. Step 4: Simplify right side
    8,663.22x = 61,339,621.52
  5. Step 5: Solve for x
    x = 61,339,621.52/8,663.22
  6. Step 6: Final answer
    x = 7,080.46

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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.