Home / 13,751.91-20,627.65-4,391.87

Finding the Fourth Proportional to 13,751.91, 20,627.65 and 4,391.87

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Solution

The fourth proportional to 13,751.91, 20,627.65 and 4,391.87 is: 6,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.91 : 20,627.65 = 4,391.87 : x
  2. Step 2: Convert to fraction form
    13,751.91/20,627.65 = 4,391.87/x
  3. Step 3: Cross multiply
    13,751.91x = 20,627.65 × 4,391.87
  4. Step 4: Simplify right side
    13,751.91x = 90,593,957.21
  5. Step 5: Solve for x
    x = 90,593,957.21/13,751.91
  6. Step 6: Final answer
    x = 6,587.74

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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.