Home / 10,089.98-15,121.09-5,149.24

Finding the Fourth Proportional to 10,089.98, 15,121.09 and 5,149.24

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Solution

The fourth proportional to 10,089.98, 15,121.09 and 5,149.24 is: 7,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.98 : 15,121.09 = 5,149.24 : x
  2. Step 2: Convert to fraction form
    10,089.98/15,121.09 = 5,149.24/x
  3. Step 3: Cross multiply
    10,089.98x = 15,121.09 × 5,149.24
  4. Step 4: Simplify right side
    10,089.98x = 77,862,090.11
  5. Step 5: Solve for x
    x = 77,862,090.11/10,089.98
  6. Step 6: Final answer
    x = 7,716.77

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1.5x scale

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.