Home / 18,205.79-25,123.82-10,247.85

Finding the Fourth Proportional to 18,205.79, 25,123.82 and 10,247.85

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Solution

The fourth proportional to 18,205.79, 25,123.82 and 10,247.85 is: 14,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.79 : 25,123.82 = 10,247.85 : x
  2. Step 2: Convert to fraction form
    18,205.79/25,123.82 = 10,247.85/x
  3. Step 3: Cross multiply
    18,205.79x = 25,123.82 × 10,247.85
  4. Step 4: Simplify right side
    18,205.79x = 257,465,013.17
  5. Step 5: Solve for x
    x = 257,465,013.17/18,205.79
  6. Step 6: Final answer
    x = 14,141.93

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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.