Home / 12,211.16-16,851.54-6,622.28

Finding the Fourth Proportional to 12,211.16, 16,851.54 and 6,622.28

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Solution

The fourth proportional to 12,211.16, 16,851.54 and 6,622.28 is: 9,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.16 : 16,851.54 = 6,622.28 : x
  2. Step 2: Convert to fraction form
    12,211.16/16,851.54 = 6,622.28/x
  3. Step 3: Cross multiply
    12,211.16x = 16,851.54 × 6,622.28
  4. Step 4: Simplify right side
    12,211.16x = 111,595,616.31
  5. Step 5: Solve for x
    x = 111,595,616.31/12,211.16
  6. Step 6: Final answer
    x = 9,138.82

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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.