Home / 12,755.36-17,615.76-10,422.56

Finding the Fourth Proportional to 12,755.36, 17,615.76 and 10,422.56

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Solution

The fourth proportional to 12,755.36, 17,615.76 and 10,422.56 is: 14,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.36 : 17,615.76 = 10,422.56 : x
  2. Step 2: Convert to fraction form
    12,755.36/17,615.76 = 10,422.56/x
  3. Step 3: Cross multiply
    12,755.36x = 17,615.76 × 10,422.56
  4. Step 4: Simplify right side
    12,755.36x = 183,601,315.55
  5. Step 5: Solve for x
    x = 183,601,315.55/12,755.36
  6. Step 6: Final answer
    x = 14,394.05

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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.