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Finding the Fourth Proportional to 8,544.74, 12,790.62 and 7,818.08

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Solution

The fourth proportional to 8,544.74, 12,790.62 and 7,818.08 is: 11,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.74 : 12,790.62 = 7,818.08 : x
  2. Step 2: Convert to fraction form
    8,544.74/12,790.62 = 7,818.08/x
  3. Step 3: Cross multiply
    8,544.74x = 12,790.62 × 7,818.08
  4. Step 4: Simplify right side
    8,544.74x = 99,998,026.46
  5. Step 5: Solve for x
    x = 99,998,026.46/8,544.74
  6. Step 6: Final answer
    x = 11,702.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.