Home / 9,895.44-13,669.04-7,920.12

Finding the Fourth Proportional to 9,895.44, 13,669.04 and 7,920.12

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Solution

The fourth proportional to 9,895.44, 13,669.04 and 7,920.12 is: 10,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.44 : 13,669.04 = 7,920.12 : x
  2. Step 2: Convert to fraction form
    9,895.44/13,669.04 = 7,920.12/x
  3. Step 3: Cross multiply
    9,895.44x = 13,669.04 × 7,920.12
  4. Step 4: Simplify right side
    9,895.44x = 108,260,437.08
  5. Step 5: Solve for x
    x = 108,260,437.08/9,895.44
  6. Step 6: Final answer
    x = 10,940.44

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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.