Home / 12,612.76-18,917.97-5,947.72

Finding the Fourth Proportional to 12,612.76, 18,917.97 and 5,947.72

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Solution

The fourth proportional to 12,612.76, 18,917.97 and 5,947.72 is: 8,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.76 : 18,917.97 = 5,947.72 : x
  2. Step 2: Convert to fraction form
    12,612.76/18,917.97 = 5,947.72/x
  3. Step 3: Cross multiply
    12,612.76x = 18,917.97 × 5,947.72
  4. Step 4: Simplify right side
    12,612.76x = 112,518,788.53
  5. Step 5: Solve for x
    x = 112,518,788.53/12,612.76
  6. Step 6: Final answer
    x = 8,921.03

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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.