Home / 11,340.54-15,647.04-6,622.11

Finding the Fourth Proportional to 11,340.54, 15,647.04 and 6,622.11

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Solution

The fourth proportional to 11,340.54, 15,647.04 and 6,622.11 is: 9,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.54 : 15,647.04 = 6,622.11 : x
  2. Step 2: Convert to fraction form
    11,340.54/15,647.04 = 6,622.11/x
  3. Step 3: Cross multiply
    11,340.54x = 15,647.04 × 6,622.11
  4. Step 4: Simplify right side
    11,340.54x = 103,616,420.05
  5. Step 5: Solve for x
    x = 103,616,420.05/11,340.54
  6. Step 6: Final answer
    x = 9,136.82

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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.