Home / 13,968.38-20,959.56-8,701.76

Finding the Fourth Proportional to 13,968.38, 20,959.56 and 8,701.76

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Solution

The fourth proportional to 13,968.38, 20,959.56 and 8,701.76 is: 13,056.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.38 : 20,959.56 = 8,701.76 : x
  2. Step 2: Convert to fraction form
    13,968.38/20,959.56 = 8,701.76/x
  3. Step 3: Cross multiply
    13,968.38x = 20,959.56 × 8,701.76
  4. Step 4: Simplify right side
    13,968.38x = 182,385,060.83
  5. Step 5: Solve for x
    x = 182,385,060.83/13,968.38
  6. Step 6: Final answer
    x = 13,056.99

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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.