Home / 9,977.20-13,767.60-5,785

Finding the Fourth Proportional to 9,977.20, 13,767.60 and 5,785

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Solution

The fourth proportional to 9,977.20, 13,767.60 and 5,785 is: 7,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.20 : 13,767.60 = 5,785 : x
  2. Step 2: Convert to fraction form
    9,977.20/13,767.60 = 5,785/x
  3. Step 3: Cross multiply
    9,977.20x = 13,767.60 × 5,785
  4. Step 4: Simplify right side
    9,977.20x = 79,645,566
  5. Step 5: Solve for x
    x = 79,645,566/9,977.20
  6. Step 6: Final answer
    x = 7,982.76

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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.