Home / 12,486.24-17,195.76-11,501.28

Finding the Fourth Proportional to 12,486.24, 17,195.76 and 11,501.28

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Solution

The fourth proportional to 12,486.24, 17,195.76 and 11,501.28 is: 15,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.24 : 17,195.76 = 11,501.28 : x
  2. Step 2: Convert to fraction form
    12,486.24/17,195.76 = 11,501.28/x
  3. Step 3: Cross multiply
    12,486.24x = 17,195.76 × 11,501.28
  4. Step 4: Simplify right side
    12,486.24x = 197,773,250.57
  5. Step 5: Solve for x
    x = 197,773,250.57/12,486.24
  6. Step 6: Final answer
    x = 15,839.30

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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.