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Finding the Fourth Proportional to 10,654.34, 14,704.08 and 6,406.79

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Solution

The fourth proportional to 10,654.34, 14,704.08 and 6,406.79 is: 8,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.34 : 14,704.08 = 6,406.79 : x
  2. Step 2: Convert to fraction form
    10,654.34/14,704.08 = 6,406.79/x
  3. Step 3: Cross multiply
    10,654.34x = 14,704.08 × 6,406.79
  4. Step 4: Simplify right side
    10,654.34x = 94,205,879.18
  5. Step 5: Solve for x
    x = 94,205,879.18/10,654.34
  6. Step 6: Final answer
    x = 8,842.02

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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.