Home / 18,601.79-25,677.20-12,316.19

Finding the Fourth Proportional to 18,601.79, 25,677.20 and 12,316.19

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Solution

The fourth proportional to 18,601.79, 25,677.20 and 12,316.19 is: 17,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.79 : 25,677.20 = 12,316.19 : x
  2. Step 2: Convert to fraction form
    18,601.79/25,677.20 = 12,316.19/x
  3. Step 3: Cross multiply
    18,601.79x = 25,677.20 × 12,316.19
  4. Step 4: Simplify right side
    18,601.79x = 316,245,176.27
  5. Step 5: Solve for x
    x = 316,245,176.27/18,601.79
  6. Step 6: Final answer
    x = 17,000.80

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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.