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Finding the Fourth Proportional to 8,663.34, 12,999.98 and 8,592.88

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Solution

The fourth proportional to 8,663.34, 12,999.98 and 8,592.88 is: 12,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.34 : 12,999.98 = 8,592.88 : x
  2. Step 2: Convert to fraction form
    8,663.34/12,999.98 = 8,592.88/x
  3. Step 3: Cross multiply
    8,663.34x = 12,999.98 × 8,592.88
  4. Step 4: Simplify right side
    8,663.34x = 111,707,268.14
  5. Step 5: Solve for x
    x = 111,707,268.14/8,663.34
  6. Step 6: Final answer
    x = 12,894.25

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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.