Home / 9,150.87-12,628.20-4,959.12

Finding the Fourth Proportional to 9,150.87, 12,628.20 and 4,959.12

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Solution

The fourth proportional to 9,150.87, 12,628.20 and 4,959.12 is: 6,843.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.87 : 12,628.20 = 4,959.12 : x
  2. Step 2: Convert to fraction form
    9,150.87/12,628.20 = 4,959.12/x
  3. Step 3: Cross multiply
    9,150.87x = 12,628.20 × 4,959.12
  4. Step 4: Simplify right side
    9,150.87x = 62,624,759.18
  5. Step 5: Solve for x
    x = 62,624,759.18/9,150.87
  6. Step 6: Final answer
    x = 6,843.59

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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.