Home / 10,362.20-15,531.75-4,120.54

Finding the Fourth Proportional to 10,362.20, 15,531.75 and 4,120.54

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Solution

The fourth proportional to 10,362.20, 15,531.75 and 4,120.54 is: 6,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,362.20 : 15,531.75 = 4,120.54 : x
  2. Step 2: Convert to fraction form
    10,362.20/15,531.75 = 4,120.54/x
  3. Step 3: Cross multiply
    10,362.20x = 15,531.75 × 4,120.54
  4. Step 4: Simplify right side
    10,362.20x = 63,999,158.32
  5. Step 5: Solve for x
    x = 63,999,158.32/10,362.20
  6. Step 6: Final answer
    x = 6,176.22

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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.