Home / 13,391.92-20,081.40-4,623.76

Finding the Fourth Proportional to 13,391.92, 20,081.40 and 4,623.76

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Solution

The fourth proportional to 13,391.92, 20,081.40 and 4,623.76 is: 6,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.92 : 20,081.40 = 4,623.76 : x
  2. Step 2: Convert to fraction form
    13,391.92/20,081.40 = 4,623.76/x
  3. Step 3: Cross multiply
    13,391.92x = 20,081.40 × 4,623.76
  4. Step 4: Simplify right side
    13,391.92x = 92,851,574.06
  5. Step 5: Solve for x
    x = 92,851,574.06/13,391.92
  6. Step 6: Final answer
    x = 6,933.40

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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.