Home / 17,920.62-26,882.64-4,773.78

Finding the Fourth Proportional to 17,920.62, 26,882.64 and 4,773.78

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Solution

The fourth proportional to 17,920.62, 26,882.64 and 4,773.78 is: 7,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.62 : 26,882.64 = 4,773.78 : x
  2. Step 2: Convert to fraction form
    17,920.62/26,882.64 = 4,773.78/x
  3. Step 3: Cross multiply
    17,920.62x = 26,882.64 × 4,773.78
  4. Step 4: Simplify right side
    17,920.62x = 128,331,809.18
  5. Step 5: Solve for x
    x = 128,331,809.18/17,920.62
  6. Step 6: Final answer
    x = 7,161.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.