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Finding the Fourth Proportional to 8,159.68, 11,256.28 and 6,363.91

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Solution

The fourth proportional to 8,159.68, 11,256.28 and 6,363.91 is: 8,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.68 : 11,256.28 = 6,363.91 : x
  2. Step 2: Convert to fraction form
    8,159.68/11,256.28 = 6,363.91/x
  3. Step 3: Cross multiply
    8,159.68x = 11,256.28 × 6,363.91
  4. Step 4: Simplify right side
    8,159.68x = 71,633,952.85
  5. Step 5: Solve for x
    x = 71,633,952.85/8,159.68
  6. Step 6: Final answer
    x = 8,779.01

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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.