Home / 12,510.20-18,765.28-5,932.79

Finding the Fourth Proportional to 12,510.20, 18,765.28 and 5,932.79

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Solution

The fourth proportional to 12,510.20, 18,765.28 and 5,932.79 is: 8,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.20 : 18,765.28 = 5,932.79 : x
  2. Step 2: Convert to fraction form
    12,510.20/18,765.28 = 5,932.79/x
  3. Step 3: Cross multiply
    12,510.20x = 18,765.28 × 5,932.79
  4. Step 4: Simplify right side
    12,510.20x = 111,330,465.53
  5. Step 5: Solve for x
    x = 111,330,465.53/12,510.20
  6. Step 6: Final answer
    x = 8,899.18

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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.