Home / 10,274.05-15,398.29-5,340.79

Finding the Fourth Proportional to 10,274.05, 15,398.29 and 5,340.79

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Solution

The fourth proportional to 10,274.05, 15,398.29 and 5,340.79 is: 8,004.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.05 : 15,398.29 = 5,340.79 : x
  2. Step 2: Convert to fraction form
    10,274.05/15,398.29 = 5,340.79/x
  3. Step 3: Cross multiply
    10,274.05x = 15,398.29 × 5,340.79
  4. Step 4: Simplify right side
    10,274.05x = 82,239,033.25
  5. Step 5: Solve for x
    x = 82,239,033.25/10,274.05
  6. Step 6: Final answer
    x = 8,004.54

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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.