Home / 13,823.15-20,736.78-4,937.78

Finding the Fourth Proportional to 13,823.15, 20,736.78 and 4,937.78

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Solution

The fourth proportional to 13,823.15, 20,736.78 and 4,937.78 is: 7,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.15 : 20,736.78 = 4,937.78 : x
  2. Step 2: Convert to fraction form
    13,823.15/20,736.78 = 4,937.78/x
  3. Step 3: Cross multiply
    13,823.15x = 20,736.78 × 4,937.78
  4. Step 4: Simplify right side
    13,823.15x = 102,393,657.55
  5. Step 5: Solve for x
    x = 102,393,657.55/13,823.15
  6. Step 6: Final answer
    x = 7,407.40

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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.