Home / 12,391.16-18,586.76-3,031.16

Finding the Fourth Proportional to 12,391.16, 18,586.76 and 3,031.16

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Solution

The fourth proportional to 12,391.16, 18,586.76 and 3,031.16 is: 4,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.16 : 18,586.76 = 3,031.16 : x
  2. Step 2: Convert to fraction form
    12,391.16/18,586.76 = 3,031.16/x
  3. Step 3: Cross multiply
    12,391.16x = 18,586.76 × 3,031.16
  4. Step 4: Simplify right side
    12,391.16x = 56,339,443.44
  5. Step 5: Solve for x
    x = 56,339,443.44/12,391.16
  6. Step 6: Final answer
    x = 4,546.74

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.