Home / 12,427.29-18,651.87-10,480.86

Finding the Fourth Proportional to 12,427.29, 18,651.87 and 10,480.86

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Solution

The fourth proportional to 12,427.29, 18,651.87 and 10,480.86 is: 15,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.29 : 18,651.87 = 10,480.86 : x
  2. Step 2: Convert to fraction form
    12,427.29/18,651.87 = 10,480.86/x
  3. Step 3: Cross multiply
    12,427.29x = 18,651.87 × 10,480.86
  4. Step 4: Simplify right side
    12,427.29x = 195,487,638.21
  5. Step 5: Solve for x
    x = 195,487,638.21/12,427.29
  6. Step 6: Final answer
    x = 15,730.51

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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.