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Finding the Fourth Proportional to 12,797.32, 17,655.62 and 7,489.08

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Solution

The fourth proportional to 12,797.32, 17,655.62 and 7,489.08 is: 10,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.32 : 17,655.62 = 7,489.08 : x
  2. Step 2: Convert to fraction form
    12,797.32/17,655.62 = 7,489.08/x
  3. Step 3: Cross multiply
    12,797.32x = 17,655.62 × 7,489.08
  4. Step 4: Simplify right side
    12,797.32x = 132,224,350.63
  5. Step 5: Solve for x
    x = 132,224,350.63/12,797.32
  6. Step 6: Final answer
    x = 10,332.19

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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.