Home / 15,450.57-21,332.03-9,164.97

Finding the Fourth Proportional to 15,450.57, 21,332.03 and 9,164.97

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Solution

The fourth proportional to 15,450.57, 21,332.03 and 9,164.97 is: 12,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.57 : 21,332.03 = 9,164.97 : x
  2. Step 2: Convert to fraction form
    15,450.57/21,332.03 = 9,164.97/x
  3. Step 3: Cross multiply
    15,450.57x = 21,332.03 × 9,164.97
  4. Step 4: Simplify right side
    15,450.57x = 195,507,369.16
  5. Step 5: Solve for x
    x = 195,507,369.16/15,450.57
  6. Step 6: Final answer
    x = 12,653.73

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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.