Home / 8,631.59-11,911.46-5,047.34

Finding the Fourth Proportional to 8,631.59, 11,911.46 and 5,047.34

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Solution

The fourth proportional to 8,631.59, 11,911.46 and 5,047.34 is: 6,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.59 : 11,911.46 = 5,047.34 : x
  2. Step 2: Convert to fraction form
    8,631.59/11,911.46 = 5,047.34/x
  3. Step 3: Cross multiply
    8,631.59x = 11,911.46 × 5,047.34
  4. Step 4: Simplify right side
    8,631.59x = 60,121,103.72
  5. Step 5: Solve for x
    x = 60,121,103.72/8,631.59
  6. Step 6: Final answer
    x = 6,965.24

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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.