Home / 10,113.32-15,172.14-3,539.72

Finding the Fourth Proportional to 10,113.32, 15,172.14 and 3,539.72

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Solution

The fourth proportional to 10,113.32, 15,172.14 and 3,539.72 is: 5,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.32 : 15,172.14 = 3,539.72 : x
  2. Step 2: Convert to fraction form
    10,113.32/15,172.14 = 3,539.72/x
  3. Step 3: Cross multiply
    10,113.32x = 15,172.14 × 3,539.72
  4. Step 4: Simplify right side
    10,113.32x = 53,705,051.54
  5. Step 5: Solve for x
    x = 53,705,051.54/10,113.32
  6. Step 6: Final answer
    x = 5,310.33

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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.