Home / 12,521.72-17,282.16-7,219.64

Finding the Fourth Proportional to 12,521.72, 17,282.16 and 7,219.64

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Solution

The fourth proportional to 12,521.72, 17,282.16 and 7,219.64 is: 9,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.72 : 17,282.16 = 7,219.64 : x
  2. Step 2: Convert to fraction form
    12,521.72/17,282.16 = 7,219.64/x
  3. Step 3: Cross multiply
    12,521.72x = 17,282.16 × 7,219.64
  4. Step 4: Simplify right side
    12,521.72x = 124,770,973.62
  5. Step 5: Solve for x
    x = 124,770,973.62/12,521.72
  6. Step 6: Final answer
    x = 9,964.36

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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.