Home / 15,451.20-21,324.51-10,079.37

Finding the Fourth Proportional to 15,451.20, 21,324.51 and 10,079.37

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Solution

The fourth proportional to 15,451.20, 21,324.51 and 10,079.37 is: 13,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.20 : 21,324.51 = 10,079.37 : x
  2. Step 2: Convert to fraction form
    15,451.20/21,324.51 = 10,079.37/x
  3. Step 3: Cross multiply
    15,451.20x = 21,324.51 × 10,079.37
  4. Step 4: Simplify right side
    15,451.20x = 214,937,626.36
  5. Step 5: Solve for x
    x = 214,937,626.36/15,451.20
  6. Step 6: Final answer
    x = 13,910.74

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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.