Home / 12,491.24-17,211.66-8,505.32

Finding the Fourth Proportional to 12,491.24, 17,211.66 and 8,505.32

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Solution

The fourth proportional to 12,491.24, 17,211.66 and 8,505.32 is: 11,719.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.24 : 17,211.66 = 8,505.32 : x
  2. Step 2: Convert to fraction form
    12,491.24/17,211.66 = 8,505.32/x
  3. Step 3: Cross multiply
    12,491.24x = 17,211.66 × 8,505.32
  4. Step 4: Simplify right side
    12,491.24x = 146,390,676.03
  5. Step 5: Solve for x
    x = 146,390,676.03/12,491.24
  6. Step 6: Final answer
    x = 11,719.47

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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.