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Finding the Fourth Proportional to 8,703.44, 12,001.98 and 7,743.36

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Solution

The fourth proportional to 8,703.44, 12,001.98 and 7,743.36 is: 10,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.44 : 12,001.98 = 7,743.36 : x
  2. Step 2: Convert to fraction form
    8,703.44/12,001.98 = 7,743.36/x
  3. Step 3: Cross multiply
    8,703.44x = 12,001.98 × 7,743.36
  4. Step 4: Simplify right side
    8,703.44x = 92,935,651.85
  5. Step 5: Solve for x
    x = 92,935,651.85/8,703.44
  6. Step 6: Final answer
    x = 10,678.04

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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.