Home / 10,275.54-15,402.38-5,340.21

Finding the Fourth Proportional to 10,275.54, 15,402.38 and 5,340.21

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Solution

The fourth proportional to 10,275.54, 15,402.38 and 5,340.21 is: 8,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.54 : 15,402.38 = 5,340.21 : x
  2. Step 2: Convert to fraction form
    10,275.54/15,402.38 = 5,340.21/x
  3. Step 3: Cross multiply
    10,275.54x = 15,402.38 × 5,340.21
  4. Step 4: Simplify right side
    10,275.54x = 82,251,917.00
  5. Step 5: Solve for x
    x = 82,251,917.00/10,275.54
  6. Step 6: Final answer
    x = 8,004.63

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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.