Home / 10,113.68-15,170.64-3,539.84

Finding the Fourth Proportional to 10,113.68, 15,170.64 and 3,539.84

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Solution

The fourth proportional to 10,113.68, 15,170.64 and 3,539.84 is: 5,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.68 : 15,170.64 = 3,539.84 : x
  2. Step 2: Convert to fraction form
    10,113.68/15,170.64 = 3,539.84/x
  3. Step 3: Cross multiply
    10,113.68x = 15,170.64 × 3,539.84
  4. Step 4: Simplify right side
    10,113.68x = 53,701,638.30
  5. Step 5: Solve for x
    x = 53,701,638.30/10,113.68
  6. Step 6: Final answer
    x = 5,309.80

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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.