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Finding the Fourth Proportional to 8,674.03, 13,011.68 and 7,641.18

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Solution

The fourth proportional to 8,674.03, 13,011.68 and 7,641.18 is: 11,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.03 : 13,011.68 = 7,641.18 : x
  2. Step 2: Convert to fraction form
    8,674.03/13,011.68 = 7,641.18/x
  3. Step 3: Cross multiply
    8,674.03x = 13,011.68 × 7,641.18
  4. Step 4: Simplify right side
    8,674.03x = 99,424,634.73
  5. Step 5: Solve for x
    x = 99,424,634.73/8,674.03
  6. Step 6: Final answer
    x = 11,462.34

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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.