Home / 12,499.92-18,752.58-4,180.68

Finding the Fourth Proportional to 12,499.92, 18,752.58 and 4,180.68

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Solution

The fourth proportional to 12,499.92, 18,752.58 and 4,180.68 is: 6,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.92 : 18,752.58 = 4,180.68 : x
  2. Step 2: Convert to fraction form
    12,499.92/18,752.58 = 4,180.68/x
  3. Step 3: Cross multiply
    12,499.92x = 18,752.58 × 4,180.68
  4. Step 4: Simplify right side
    12,499.92x = 78,398,536.15
  5. Step 5: Solve for x
    x = 78,398,536.15/12,499.92
  6. Step 6: Final answer
    x = 6,271.92

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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.