Home / 9,872.51-13,623.66-5,396.42

Finding the Fourth Proportional to 9,872.51, 13,623.66 and 5,396.42

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Solution

The fourth proportional to 9,872.51, 13,623.66 and 5,396.42 is: 7,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.51 : 13,623.66 = 5,396.42 : x
  2. Step 2: Convert to fraction form
    9,872.51/13,623.66 = 5,396.42/x
  3. Step 3: Cross multiply
    9,872.51x = 13,623.66 × 5,396.42
  4. Step 4: Simplify right side
    9,872.51x = 73,518,991.30
  5. Step 5: Solve for x
    x = 73,518,991.30/9,872.51
  6. Step 6: Final answer
    x = 7,446.84

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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.