Home / 13,957.12-20,930.56-4,093.76

Finding the Fourth Proportional to 13,957.12, 20,930.56 and 4,093.76

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Solution

The fourth proportional to 13,957.12, 20,930.56 and 4,093.76 is: 6,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.12 : 20,930.56 = 4,093.76 : x
  2. Step 2: Convert to fraction form
    13,957.12/20,930.56 = 4,093.76/x
  3. Step 3: Cross multiply
    13,957.12x = 20,930.56 × 4,093.76
  4. Step 4: Simplify right side
    13,957.12x = 85,684,689.31
  5. Step 5: Solve for x
    x = 85,684,689.31/13,957.12
  6. Step 6: Final answer
    x = 6,139.14

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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.