Home / 18,951.57-26,153.10-10,885.75

Finding the Fourth Proportional to 18,951.57, 26,153.10 and 10,885.75

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Solution

The fourth proportional to 18,951.57, 26,153.10 and 10,885.75 is: 15,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.57 : 26,153.10 = 10,885.75 : x
  2. Step 2: Convert to fraction form
    18,951.57/26,153.10 = 10,885.75/x
  3. Step 3: Cross multiply
    18,951.57x = 26,153.10 × 10,885.75
  4. Step 4: Simplify right side
    18,951.57x = 284,696,042.94
  5. Step 5: Solve for x
    x = 284,696,042.94/18,951.57
  6. Step 6: Final answer
    x = 15,022.29

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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.