Home / 12,719.36-17,534.28-8,930.99

Finding the Fourth Proportional to 12,719.36, 17,534.28 and 8,930.99

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Solution

The fourth proportional to 12,719.36, 17,534.28 and 8,930.99 is: 12,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.36 : 17,534.28 = 8,930.99 : x
  2. Step 2: Convert to fraction form
    12,719.36/17,534.28 = 8,930.99/x
  3. Step 3: Cross multiply
    12,719.36x = 17,534.28 × 8,930.99
  4. Step 4: Simplify right side
    12,719.36x = 156,598,556.66
  5. Step 5: Solve for x
    x = 156,598,556.66/12,719.36
  6. Step 6: Final answer
    x = 12,311.82

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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.