Home / 15,210.52-20,990.30-8,496.26

Finding the Fourth Proportional to 15,210.52, 20,990.30 and 8,496.26

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Solution

The fourth proportional to 15,210.52, 20,990.30 and 8,496.26 is: 11,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.52 : 20,990.30 = 8,496.26 : x
  2. Step 2: Convert to fraction form
    15,210.52/20,990.30 = 8,496.26/x
  3. Step 3: Cross multiply
    15,210.52x = 20,990.30 × 8,496.26
  4. Step 4: Simplify right side
    15,210.52x = 178,339,046.28
  5. Step 5: Solve for x
    x = 178,339,046.28/15,210.52
  6. Step 6: Final answer
    x = 11,724.72

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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.