Home / 18,747.48-25,872.30-10,789.72

Finding the Fourth Proportional to 18,747.48, 25,872.30 and 10,789.72

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Solution

The fourth proportional to 18,747.48, 25,872.30 and 10,789.72 is: 14,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.48 : 25,872.30 = 10,789.72 : x
  2. Step 2: Convert to fraction form
    18,747.48/25,872.30 = 10,789.72/x
  3. Step 3: Cross multiply
    18,747.48x = 25,872.30 × 10,789.72
  4. Step 4: Simplify right side
    18,747.48x = 279,154,872.76
  5. Step 5: Solve for x
    x = 279,154,872.76/18,747.48
  6. Step 6: Final answer
    x = 14,890.26

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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.