Home / 11,335.06-15,642.48-6,622.21

Finding the Fourth Proportional to 11,335.06, 15,642.48 and 6,622.21

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Solution

The fourth proportional to 11,335.06, 15,642.48 and 6,622.21 is: 9,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.06 : 15,642.48 = 6,622.21 : x
  2. Step 2: Convert to fraction form
    11,335.06/15,642.48 = 6,622.21/x
  3. Step 3: Cross multiply
    11,335.06x = 15,642.48 × 6,622.21
  4. Step 4: Simplify right side
    11,335.06x = 103,587,787.48
  5. Step 5: Solve for x
    x = 103,587,787.48/11,335.06
  6. Step 6: Final answer
    x = 9,138.71

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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.