Home / 13,631.76-20,443.86-5,838.75

Finding the Fourth Proportional to 13,631.76, 20,443.86 and 5,838.75

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Solution

The fourth proportional to 13,631.76, 20,443.86 and 5,838.75 is: 8,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.76 : 20,443.86 = 5,838.75 : x
  2. Step 2: Convert to fraction form
    13,631.76/20,443.86 = 5,838.75/x
  3. Step 3: Cross multiply
    13,631.76x = 20,443.86 × 5,838.75
  4. Step 4: Simplify right side
    13,631.76x = 119,366,587.58
  5. Step 5: Solve for x
    x = 119,366,587.58/13,631.76
  6. Step 6: Final answer
    x = 8,756.51

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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.