Home / 15,524.49-21,425.69-8,812.22

Finding the Fourth Proportional to 15,524.49, 21,425.69 and 8,812.22

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Solution

The fourth proportional to 15,524.49, 21,425.69 and 8,812.22 is: 12,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.49 : 21,425.69 = 8,812.22 : x
  2. Step 2: Convert to fraction form
    15,524.49/21,425.69 = 8,812.22/x
  3. Step 3: Cross multiply
    15,524.49x = 21,425.69 × 8,812.22
  4. Step 4: Simplify right side
    15,524.49x = 188,807,742.74
  5. Step 5: Solve for x
    x = 188,807,742.74/15,524.49
  6. Step 6: Final answer
    x = 12,161.93

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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.