Home / 12,487.16-18,733.44-3,722.80

Finding the Fourth Proportional to 12,487.16, 18,733.44 and 3,722.80

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Solution

The fourth proportional to 12,487.16, 18,733.44 and 3,722.80 is: 5,585.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.16 : 18,733.44 = 3,722.80 : x
  2. Step 2: Convert to fraction form
    12,487.16/18,733.44 = 3,722.80/x
  3. Step 3: Cross multiply
    12,487.16x = 18,733.44 × 3,722.80
  4. Step 4: Simplify right side
    12,487.16x = 69,740,850.43
  5. Step 5: Solve for x
    x = 69,740,850.43/12,487.16
  6. Step 6: Final answer
    x = 5,585.00

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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.