Home / 10,660.52-15,991.59-5,470.04

Finding the Fourth Proportional to 10,660.52, 15,991.59 and 5,470.04

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Solution

The fourth proportional to 10,660.52, 15,991.59 and 5,470.04 is: 8,205.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.52 : 15,991.59 = 5,470.04 : x
  2. Step 2: Convert to fraction form
    10,660.52/15,991.59 = 5,470.04/x
  3. Step 3: Cross multiply
    10,660.52x = 15,991.59 × 5,470.04
  4. Step 4: Simplify right side
    10,660.52x = 87,474,636.96
  5. Step 5: Solve for x
    x = 87,474,636.96/10,660.52
  6. Step 6: Final answer
    x = 8,205.48

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1.5x scale

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.