Home / 6,864.78-9,473.40-3,720.96

Finding the Fourth Proportional to 6,864.78, 9,473.40 and 3,720.96

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Solution

The fourth proportional to 6,864.78, 9,473.40 and 3,720.96 is: 5,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.78 : 9,473.40 = 3,720.96 : x
  2. Step 2: Convert to fraction form
    6,864.78/9,473.40 = 3,720.96/x
  3. Step 3: Cross multiply
    6,864.78x = 9,473.40 × 3,720.96
  4. Step 4: Simplify right side
    6,864.78x = 35,250,142.46
  5. Step 5: Solve for x
    x = 35,250,142.46/6,864.78
  6. Step 6: Final answer
    x = 5,134.93

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1.5x scale

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.