Home / 13,850.46-19,115.24-7,800.76

Finding the Fourth Proportional to 13,850.46, 19,115.24 and 7,800.76

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Solution

The fourth proportional to 13,850.46, 19,115.24 and 7,800.76 is: 10,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.46 : 19,115.24 = 7,800.76 : x
  2. Step 2: Convert to fraction form
    13,850.46/19,115.24 = 7,800.76/x
  3. Step 3: Cross multiply
    13,850.46x = 19,115.24 × 7,800.76
  4. Step 4: Simplify right side
    13,850.46x = 149,113,399.58
  5. Step 5: Solve for x
    x = 149,113,399.58/13,850.46
  6. Step 6: Final answer
    x = 10,765.95

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Half scale
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Double scale
Find fourth proportional to 13,851.46, 19,116.62 and 7,801.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.