Home / 12,491.28-17,254.62-10,161.72

Finding the Fourth Proportional to 12,491.28, 17,254.62 and 10,161.72

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Solution

The fourth proportional to 12,491.28, 17,254.62 and 10,161.72 is: 14,036.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.28 : 17,254.62 = 10,161.72 : x
  2. Step 2: Convert to fraction form
    12,491.28/17,254.62 = 10,161.72/x
  3. Step 3: Cross multiply
    12,491.28x = 17,254.62 × 10,161.72
  4. Step 4: Simplify right side
    12,491.28x = 175,336,617.15
  5. Step 5: Solve for x
    x = 175,336,617.15/12,491.28
  6. Step 6: Final answer
    x = 14,036.72

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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.