Home / 13,723.54-18,940.16-8,948.59

Finding the Fourth Proportional to 13,723.54, 18,940.16 and 8,948.59

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Solution

The fourth proportional to 13,723.54, 18,940.16 and 8,948.59 is: 12,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.54 : 18,940.16 = 8,948.59 : x
  2. Step 2: Convert to fraction form
    13,723.54/18,940.16 = 8,948.59/x
  3. Step 3: Cross multiply
    13,723.54x = 18,940.16 × 8,948.59
  4. Step 4: Simplify right side
    13,723.54x = 169,487,586.93
  5. Step 5: Solve for x
    x = 169,487,586.93/13,723.54
  6. Step 6: Final answer
    x = 12,350.14

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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.