Home / 10,618.82-15,914.55-4,371.32

Finding the Fourth Proportional to 10,618.82, 15,914.55 and 4,371.32

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Solution

The fourth proportional to 10,618.82, 15,914.55 and 4,371.32 is: 6,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.82 : 15,914.55 = 4,371.32 : x
  2. Step 2: Convert to fraction form
    10,618.82/15,914.55 = 4,371.32/x
  3. Step 3: Cross multiply
    10,618.82x = 15,914.55 × 4,371.32
  4. Step 4: Simplify right side
    10,618.82x = 69,567,590.71
  5. Step 5: Solve for x
    x = 69,567,590.71/10,618.82
  6. Step 6: Final answer
    x = 6,551.35

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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.