Home / 10,400.19-15,583.87-3,817.32

Finding the Fourth Proportional to 10,400.19, 15,583.87 and 3,817.32

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Solution

The fourth proportional to 10,400.19, 15,583.87 and 3,817.32 is: 5,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.19 : 15,583.87 = 3,817.32 : x
  2. Step 2: Convert to fraction form
    10,400.19/15,583.87 = 3,817.32/x
  3. Step 3: Cross multiply
    10,400.19x = 15,583.87 × 3,817.32
  4. Step 4: Simplify right side
    10,400.19x = 59,488,618.63
  5. Step 5: Solve for x
    x = 59,488,618.63/10,400.19
  6. Step 6: Final answer
    x = 5,719.95

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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.