Home / 12,449.32-18,685.70-8,292.25

Finding the Fourth Proportional to 12,449.32, 18,685.70 and 8,292.25

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Solution

The fourth proportional to 12,449.32, 18,685.70 and 8,292.25 is: 12,446.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.32 : 18,685.70 = 8,292.25 : x
  2. Step 2: Convert to fraction form
    12,449.32/18,685.70 = 8,292.25/x
  3. Step 3: Cross multiply
    12,449.32x = 18,685.70 × 8,292.25
  4. Step 4: Simplify right side
    12,449.32x = 154,946,495.83
  5. Step 5: Solve for x
    x = 154,946,495.83/12,449.32
  6. Step 6: Final answer
    x = 12,446.18

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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.