Home / 18,715.18-25,828.86-10,757.74

Finding the Fourth Proportional to 18,715.18, 25,828.86 and 10,757.74

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Solution

The fourth proportional to 18,715.18, 25,828.86 and 10,757.74 is: 14,846.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.18 : 25,828.86 = 10,757.74 : x
  2. Step 2: Convert to fraction form
    18,715.18/25,828.86 = 10,757.74/x
  3. Step 3: Cross multiply
    18,715.18x = 25,828.86 × 10,757.74
  4. Step 4: Simplify right side
    18,715.18x = 277,860,160.38
  5. Step 5: Solve for x
    x = 277,860,160.38/18,715.18
  6. Step 6: Final answer
    x = 14,846.78

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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.