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Finding the Fourth Proportional to 10,468.82, 15,775.22 and 8,660.55

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Solution

The fourth proportional to 10,468.82, 15,775.22 and 8,660.55 is: 13,050.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468.82 : 15,775.22 = 8,660.55 : x
  2. Step 2: Convert to fraction form
    10,468.82/15,775.22 = 8,660.55/x
  3. Step 3: Cross multiply
    10,468.82x = 15,775.22 × 8,660.55
  4. Step 4: Simplify right side
    10,468.82x = 136,622,038.27
  5. Step 5: Solve for x
    x = 136,622,038.27/10,468.82
  6. Step 6: Final answer
    x = 13,050.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.