Home / 10,124.46-15,186.69-5,438.02

Finding the Fourth Proportional to 10,124.46, 15,186.69 and 5,438.02

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Solution

The fourth proportional to 10,124.46, 15,186.69 and 5,438.02 is: 8,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.46 : 15,186.69 = 5,438.02 : x
  2. Step 2: Convert to fraction form
    10,124.46/15,186.69 = 5,438.02/x
  3. Step 3: Cross multiply
    10,124.46x = 15,186.69 × 5,438.02
  4. Step 4: Simplify right side
    10,124.46x = 82,585,523.95
  5. Step 5: Solve for x
    x = 82,585,523.95/10,124.46
  6. Step 6: Final answer
    x = 8,157.03

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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.