Home / 13,840.77-20,734.56-8,560.38

Finding the Fourth Proportional to 13,840.77, 20,734.56 and 8,560.38

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Solution

The fourth proportional to 13,840.77, 20,734.56 and 8,560.38 is: 12,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.77 : 20,734.56 = 8,560.38 : x
  2. Step 2: Convert to fraction form
    13,840.77/20,734.56 = 8,560.38/x
  3. Step 3: Cross multiply
    13,840.77x = 20,734.56 × 8,560.38
  4. Step 4: Simplify right side
    13,840.77x = 177,495,712.73
  5. Step 5: Solve for x
    x = 177,495,712.73/13,840.77
  6. Step 6: Final answer
    x = 12,824.12

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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.