Home / 8,173.85-11,285.15-5,031.86

Finding the Fourth Proportional to 8,173.85, 11,285.15 and 5,031.86

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Solution

The fourth proportional to 8,173.85, 11,285.15 and 5,031.86 is: 6,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.85 : 11,285.15 = 5,031.86 : x
  2. Step 2: Convert to fraction form
    8,173.85/11,285.15 = 5,031.86/x
  3. Step 3: Cross multiply
    8,173.85x = 11,285.15 × 5,031.86
  4. Step 4: Simplify right side
    8,173.85x = 56,785,213.29
  5. Step 5: Solve for x
    x = 56,785,213.29/8,173.85
  6. Step 6: Final answer
    x = 6,947.18

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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.