Home / 10,013.16-15,020.88-3,438.12

Finding the Fourth Proportional to 10,013.16, 15,020.88 and 3,438.12

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Solution

The fourth proportional to 10,013.16, 15,020.88 and 3,438.12 is: 5,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.16 : 15,020.88 = 3,438.12 : x
  2. Step 2: Convert to fraction form
    10,013.16/15,020.88 = 3,438.12/x
  3. Step 3: Cross multiply
    10,013.16x = 15,020.88 × 3,438.12
  4. Step 4: Simplify right side
    10,013.16x = 51,643,587.95
  5. Step 5: Solve for x
    x = 51,643,587.95/10,013.16
  6. Step 6: Final answer
    x = 5,157.57

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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.