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Finding the Fourth Proportional to 12,718.57, 17,552.64 and 7,053.88

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Solution

The fourth proportional to 12,718.57, 17,552.64 and 7,053.88 is: 9,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.57 : 17,552.64 = 7,053.88 : x
  2. Step 2: Convert to fraction form
    12,718.57/17,552.64 = 7,053.88/x
  3. Step 3: Cross multiply
    12,718.57x = 17,552.64 × 7,053.88
  4. Step 4: Simplify right side
    12,718.57x = 123,814,216.24
  5. Step 5: Solve for x
    x = 123,814,216.24/12,718.57
  6. Step 6: Final answer
    x = 9,734.92

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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.