Home / 13,360.32-20,040.48-7,521.12

Finding the Fourth Proportional to 13,360.32, 20,040.48 and 7,521.12

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Solution

The fourth proportional to 13,360.32, 20,040.48 and 7,521.12 is: 11,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.32 : 20,040.48 = 7,521.12 : x
  2. Step 2: Convert to fraction form
    13,360.32/20,040.48 = 7,521.12/x
  3. Step 3: Cross multiply
    13,360.32x = 20,040.48 × 7,521.12
  4. Step 4: Simplify right side
    13,360.32x = 150,726,854.94
  5. Step 5: Solve for x
    x = 150,726,854.94/13,360.32
  6. Step 6: Final answer
    x = 11,281.68

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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.