Home / 13,340.66-20,004.83-7,795.71

Finding the Fourth Proportional to 13,340.66, 20,004.83 and 7,795.71

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Solution

The fourth proportional to 13,340.66, 20,004.83 and 7,795.71 is: 11,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.66 : 20,004.83 = 7,795.71 : x
  2. Step 2: Convert to fraction form
    13,340.66/20,004.83 = 7,795.71/x
  3. Step 3: Cross multiply
    13,340.66x = 20,004.83 × 7,795.71
  4. Step 4: Simplify right side
    13,340.66x = 155,951,714.28
  5. Step 5: Solve for x
    x = 155,951,714.28/13,340.66
  6. Step 6: Final answer
    x = 11,689.95

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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.