Home / 18,580.13-25,640.23-10,513.70

Finding the Fourth Proportional to 18,580.13, 25,640.23 and 10,513.70

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Solution

The fourth proportional to 18,580.13, 25,640.23 and 10,513.70 is: 14,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.13 : 25,640.23 = 10,513.70 : x
  2. Step 2: Convert to fraction form
    18,580.13/25,640.23 = 10,513.70/x
  3. Step 3: Cross multiply
    18,580.13x = 25,640.23 × 10,513.70
  4. Step 4: Simplify right side
    18,580.13x = 269,573,686.15
  5. Step 5: Solve for x
    x = 269,573,686.15/18,580.13
  6. Step 6: Final answer
    x = 14,508.71

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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.