Home / 10,957.14-15,119.73-6,480.02

Finding the Fourth Proportional to 10,957.14, 15,119.73 and 6,480.02

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Solution

The fourth proportional to 10,957.14, 15,119.73 and 6,480.02 is: 8,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.14 : 15,119.73 = 6,480.02 : x
  2. Step 2: Convert to fraction form
    10,957.14/15,119.73 = 6,480.02/x
  3. Step 3: Cross multiply
    10,957.14x = 15,119.73 × 6,480.02
  4. Step 4: Simplify right side
    10,957.14x = 97,976,105.55
  5. Step 5: Solve for x
    x = 97,976,105.55/10,957.14
  6. Step 6: Final answer
    x = 8,941.76

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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.