Home / 15,451.40-21,324.26-8,738.22

Finding the Fourth Proportional to 15,451.40, 21,324.26 and 8,738.22

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Solution

The fourth proportional to 15,451.40, 21,324.26 and 8,738.22 is: 12,059.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.40 : 21,324.26 = 8,738.22 : x
  2. Step 2: Convert to fraction form
    15,451.40/21,324.26 = 8,738.22/x
  3. Step 3: Cross multiply
    15,451.40x = 21,324.26 × 8,738.22
  4. Step 4: Simplify right side
    15,451.40x = 186,336,075.22
  5. Step 5: Solve for x
    x = 186,336,075.22/15,451.40
  6. Step 6: Final answer
    x = 12,059.49

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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.