Home / 9,119.88-12,585.45-4,928.14

Finding the Fourth Proportional to 9,119.88, 12,585.45 and 4,928.14

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Solution

The fourth proportional to 9,119.88, 12,585.45 and 4,928.14 is: 6,800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.88 : 12,585.45 = 4,928.14 : x
  2. Step 2: Convert to fraction form
    9,119.88/12,585.45 = 4,928.14/x
  3. Step 3: Cross multiply
    9,119.88x = 12,585.45 × 4,928.14
  4. Step 4: Simplify right side
    9,119.88x = 62,022,859.56
  5. Step 5: Solve for x
    x = 62,022,859.56/9,119.88
  6. Step 6: Final answer
    x = 6,800.84

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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.