Home / 10,996.74-15,172.86-6,521.60

Finding the Fourth Proportional to 10,996.74, 15,172.86 and 6,521.60

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Solution

The fourth proportional to 10,996.74, 15,172.86 and 6,521.60 is: 8,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.74 : 15,172.86 = 6,521.60 : x
  2. Step 2: Convert to fraction form
    10,996.74/15,172.86 = 6,521.60/x
  3. Step 3: Cross multiply
    10,996.74x = 15,172.86 × 6,521.60
  4. Step 4: Simplify right side
    10,996.74x = 98,951,247.91
  5. Step 5: Solve for x
    x = 98,951,247.91/10,996.74
  6. Step 6: Final answer
    x = 8,998.23

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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.