Home / 14,867.81-20,517.56-8,153.54

Finding the Fourth Proportional to 14,867.81, 20,517.56 and 8,153.54

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Solution

The fourth proportional to 14,867.81, 20,517.56 and 8,153.54 is: 11,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.81 : 20,517.56 = 8,153.54 : x
  2. Step 2: Convert to fraction form
    14,867.81/20,517.56 = 8,153.54/x
  3. Step 3: Cross multiply
    14,867.81x = 20,517.56 × 8,153.54
  4. Step 4: Simplify right side
    14,867.81x = 167,290,746.16
  5. Step 5: Solve for x
    x = 167,290,746.16/14,867.81
  6. Step 6: Final answer
    x = 11,251.88

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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.