Home / 6,721.52-10,117.68-5,719.28

Finding the Fourth Proportional to 6,721.52, 10,117.68 and 5,719.28

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Solution

The fourth proportional to 6,721.52, 10,117.68 and 5,719.28 is: 8,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.52 : 10,117.68 = 5,719.28 : x
  2. Step 2: Convert to fraction form
    6,721.52/10,117.68 = 5,719.28/x
  3. Step 3: Cross multiply
    6,721.52x = 10,117.68 × 5,719.28
  4. Step 4: Simplify right side
    6,721.52x = 57,865,844.87
  5. Step 5: Solve for x
    x = 57,865,844.87/6,721.52
  6. Step 6: Final answer
    x = 8,609.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.