Home / 15,451.12-21,324.36-9,480.70

Finding the Fourth Proportional to 15,451.12, 21,324.36 and 9,480.70

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Solution

The fourth proportional to 15,451.12, 21,324.36 and 9,480.70 is: 13,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.12 : 21,324.36 = 9,480.70 : x
  2. Step 2: Convert to fraction form
    15,451.12/21,324.36 = 9,480.70/x
  3. Step 3: Cross multiply
    15,451.12x = 21,324.36 × 9,480.70
  4. Step 4: Simplify right side
    15,451.12x = 202,169,859.85
  5. Step 5: Solve for x
    x = 202,169,859.85/15,451.12
  6. Step 6: Final answer
    x = 13,084.48

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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.