Home / 9,888.11-13,645.97-5,412.25

Finding the Fourth Proportional to 9,888.11, 13,645.97 and 5,412.25

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Solution

The fourth proportional to 9,888.11, 13,645.97 and 5,412.25 is: 7,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.11 : 13,645.97 = 5,412.25 : x
  2. Step 2: Convert to fraction form
    9,888.11/13,645.97 = 5,412.25/x
  3. Step 3: Cross multiply
    9,888.11x = 13,645.97 × 5,412.25
  4. Step 4: Simplify right side
    9,888.11x = 73,855,411.42
  5. Step 5: Solve for x
    x = 73,855,411.42/9,888.11
  6. Step 6: Final answer
    x = 7,469.11

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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.