Home / 10,996.81-15,173.68-6,521.66

Finding the Fourth Proportional to 10,996.81, 15,173.68 and 6,521.66

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Solution

The fourth proportional to 10,996.81, 15,173.68 and 6,521.66 is: 8,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.81 : 15,173.68 = 6,521.66 : x
  2. Step 2: Convert to fraction form
    10,996.81/15,173.68 = 6,521.66/x
  3. Step 3: Cross multiply
    10,996.81x = 15,173.68 × 6,521.66
  4. Step 4: Simplify right side
    10,996.81x = 98,957,644.22
  5. Step 5: Solve for x
    x = 98,957,644.22/10,996.81
  6. Step 6: Final answer
    x = 8,998.76

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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.