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Finding the Fourth Proportional to 12,795.65, 17,658.12 and 7,490.57

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Solution

The fourth proportional to 12,795.65, 17,658.12 and 7,490.57 is: 10,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.65 : 17,658.12 = 7,490.57 : x
  2. Step 2: Convert to fraction form
    12,795.65/17,658.12 = 7,490.57/x
  3. Step 3: Cross multiply
    12,795.65x = 17,658.12 × 7,490.57
  4. Step 4: Simplify right side
    12,795.65x = 132,269,346.48
  5. Step 5: Solve for x
    x = 132,269,346.48/12,795.65
  6. Step 6: Final answer
    x = 10,337.06

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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.