Home / 9,955.28-13,740.36-5,976.56

Finding the Fourth Proportional to 9,955.28, 13,740.36 and 5,976.56

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Solution

The fourth proportional to 9,955.28, 13,740.36 and 5,976.56 is: 8,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.28 : 13,740.36 = 5,976.56 : x
  2. Step 2: Convert to fraction form
    9,955.28/13,740.36 = 5,976.56/x
  3. Step 3: Cross multiply
    9,955.28x = 13,740.36 × 5,976.56
  4. Step 4: Simplify right side
    9,955.28x = 82,120,085.96
  5. Step 5: Solve for x
    x = 82,120,085.96/9,955.28
  6. Step 6: Final answer
    x = 8,248.90

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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.