Home / 11,040.71-15,225.17-7,399.35

Finding the Fourth Proportional to 11,040.71, 15,225.17 and 7,399.35

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Solution

The fourth proportional to 11,040.71, 15,225.17 and 7,399.35 is: 10,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.71 : 15,225.17 = 7,399.35 : x
  2. Step 2: Convert to fraction form
    11,040.71/15,225.17 = 7,399.35/x
  3. Step 3: Cross multiply
    11,040.71x = 15,225.17 × 7,399.35
  4. Step 4: Simplify right side
    11,040.71x = 112,656,324.64
  5. Step 5: Solve for x
    x = 112,656,324.64/11,040.71
  6. Step 6: Final answer
    x = 10,203.73

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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.