Home / 8,917.28-12,301.08-5,768

Finding the Fourth Proportional to 8,917.28, 12,301.08 and 5,768

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Solution

The fourth proportional to 8,917.28, 12,301.08 and 5,768 is: 7,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.28 : 12,301.08 = 5,768 : x
  2. Step 2: Convert to fraction form
    8,917.28/12,301.08 = 5,768/x
  3. Step 3: Cross multiply
    8,917.28x = 12,301.08 × 5,768
  4. Step 4: Simplify right side
    8,917.28x = 70,952,629.44
  5. Step 5: Solve for x
    x = 70,952,629.44/8,917.28
  6. Step 6: Final answer
    x = 7,956.76

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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.