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Finding the Fourth Proportional to 8,625.93, 12,913.10 and 5,283.65

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Solution

The fourth proportional to 8,625.93, 12,913.10 and 5,283.65 is: 7,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.93 : 12,913.10 = 5,283.65 : x
  2. Step 2: Convert to fraction form
    8,625.93/12,913.10 = 5,283.65/x
  3. Step 3: Cross multiply
    8,625.93x = 12,913.10 × 5,283.65
  4. Step 4: Simplify right side
    8,625.93x = 68,228,346.31
  5. Step 5: Solve for x
    x = 68,228,346.31/8,625.93
  6. Step 6: Final answer
    x = 7,909.68

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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.