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Finding the Fourth Proportional to 8,871.54, 13,279.63 and 6,534.18

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Solution

The fourth proportional to 8,871.54, 13,279.63 and 6,534.18 is: 9,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.54 : 13,279.63 = 6,534.18 : x
  2. Step 2: Convert to fraction form
    8,871.54/13,279.63 = 6,534.18/x
  3. Step 3: Cross multiply
    8,871.54x = 13,279.63 × 6,534.18
  4. Step 4: Simplify right side
    8,871.54x = 86,771,550.72
  5. Step 5: Solve for x
    x = 86,771,550.72/8,871.54
  6. Step 6: Final answer
    x = 9,780.89

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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.