Home / 11,028.42-15,213.15-6,987.84

Finding the Fourth Proportional to 11,028.42, 15,213.15 and 6,987.84

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Solution

The fourth proportional to 11,028.42, 15,213.15 and 6,987.84 is: 9,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.42 : 15,213.15 = 6,987.84 : x
  2. Step 2: Convert to fraction form
    11,028.42/15,213.15 = 6,987.84/x
  3. Step 3: Cross multiply
    11,028.42x = 15,213.15 × 6,987.84
  4. Step 4: Simplify right side
    11,028.42x = 106,307,058.10
  5. Step 5: Solve for x
    x = 106,307,058.10/11,028.42
  6. Step 6: Final answer
    x = 9,639.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.