Home / 10,727.40-16,079.90-5,172.36

Finding the Fourth Proportional to 10,727.40, 16,079.90 and 5,172.36

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Solution

The fourth proportional to 10,727.40, 16,079.90 and 5,172.36 is: 7,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,727.40 : 16,079.90 = 5,172.36 : x
  2. Step 2: Convert to fraction form
    10,727.40/16,079.90 = 5,172.36/x
  3. Step 3: Cross multiply
    10,727.40x = 16,079.90 × 5,172.36
  4. Step 4: Simplify right side
    10,727.40x = 83,171,031.56
  5. Step 5: Solve for x
    x = 83,171,031.56/10,727.40
  6. Step 6: Final answer
    x = 7,753.14

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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.