Home / 8,750.12-13,125.96-2,906.78

Finding the Fourth Proportional to 8,750.12, 13,125.96 and 2,906.78

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Solution

The fourth proportional to 8,750.12, 13,125.96 and 2,906.78 is: 4,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.12 : 13,125.96 = 2,906.78 : x
  2. Step 2: Convert to fraction form
    8,750.12/13,125.96 = 2,906.78/x
  3. Step 3: Cross multiply
    8,750.12x = 13,125.96 × 2,906.78
  4. Step 4: Simplify right side
    8,750.12x = 38,154,278.01
  5. Step 5: Solve for x
    x = 38,154,278.01/8,750.12
  6. Step 6: Final answer
    x = 4,360.43

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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.