Home / 11,990.53-17,987.33-6,436.26

Finding the Fourth Proportional to 11,990.53, 17,987.33 and 6,436.26

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Solution

The fourth proportional to 11,990.53, 17,987.33 and 6,436.26 is: 9,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.53 : 17,987.33 = 6,436.26 : x
  2. Step 2: Convert to fraction form
    11,990.53/17,987.33 = 6,436.26/x
  3. Step 3: Cross multiply
    11,990.53x = 17,987.33 × 6,436.26
  4. Step 4: Simplify right side
    11,990.53x = 115,771,010.47
  5. Step 5: Solve for x
    x = 115,771,010.47/11,990.53
  6. Step 6: Final answer
    x = 9,655.20

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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.