Home / 15,210.46-20,990.21-8,496.18

Finding the Fourth Proportional to 15,210.46, 20,990.21 and 8,496.18

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Solution

The fourth proportional to 15,210.46, 20,990.21 and 8,496.18 is: 11,724.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.46 : 20,990.21 = 8,496.18 : x
  2. Step 2: Convert to fraction form
    15,210.46/20,990.21 = 8,496.18/x
  3. Step 3: Cross multiply
    15,210.46x = 20,990.21 × 8,496.18
  4. Step 4: Simplify right side
    15,210.46x = 178,336,612.39
  5. Step 5: Solve for x
    x = 178,336,612.39/15,210.46
  6. Step 6: Final answer
    x = 11,724.61

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Double scale
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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.