Home / 18,824.23-25,982.17-12,784.70

Finding the Fourth Proportional to 18,824.23, 25,982.17 and 12,784.70

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Solution

The fourth proportional to 18,824.23, 25,982.17 and 12,784.70 is: 17,646.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.23 : 25,982.17 = 12,784.70 : x
  2. Step 2: Convert to fraction form
    18,824.23/25,982.17 = 12,784.70/x
  3. Step 3: Cross multiply
    18,824.23x = 25,982.17 × 12,784.70
  4. Step 4: Simplify right side
    18,824.23x = 332,174,248.80
  5. Step 5: Solve for x
    x = 332,174,248.80/18,824.23
  6. Step 6: Final answer
    x = 17,646.10

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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.