Home / 11,115.11-15,336.59-6,637.22

Finding the Fourth Proportional to 11,115.11, 15,336.59 and 6,637.22

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Solution

The fourth proportional to 11,115.11, 15,336.59 and 6,637.22 is: 9,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.11 : 15,336.59 = 6,637.22 : x
  2. Step 2: Convert to fraction form
    11,115.11/15,336.59 = 6,637.22/x
  3. Step 3: Cross multiply
    11,115.11x = 15,336.59 × 6,637.22
  4. Step 4: Simplify right side
    11,115.11x = 101,792,327.04
  5. Step 5: Solve for x
    x = 101,792,327.04/11,115.11
  6. Step 6: Final answer
    x = 9,158.02

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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.