Home / 17,780.33-26,671.88-5,299.40

Finding the Fourth Proportional to 17,780.33, 26,671.88 and 5,299.40

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Solution

The fourth proportional to 17,780.33, 26,671.88 and 5,299.40 is: 7,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.33 : 26,671.88 = 5,299.40 : x
  2. Step 2: Convert to fraction form
    17,780.33/26,671.88 = 5,299.40/x
  3. Step 3: Cross multiply
    17,780.33x = 26,671.88 × 5,299.40
  4. Step 4: Simplify right side
    17,780.33x = 141,345,001.05
  5. Step 5: Solve for x
    x = 141,345,001.05/17,780.33
  6. Step 6: Final answer
    x = 7,949.51

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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.