Home / 13,738.59-20,612.57-5,840.78

Finding the Fourth Proportional to 13,738.59, 20,612.57 and 5,840.78

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Solution

The fourth proportional to 13,738.59, 20,612.57 and 5,840.78 is: 8,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.59 : 20,612.57 = 5,840.78 : x
  2. Step 2: Convert to fraction form
    13,738.59/20,612.57 = 5,840.78/x
  3. Step 3: Cross multiply
    13,738.59x = 20,612.57 × 5,840.78
  4. Step 4: Simplify right side
    13,738.59x = 120,393,486.60
  5. Step 5: Solve for x
    x = 120,393,486.60/13,738.59
  6. Step 6: Final answer
    x = 8,763.16

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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.