Home / 12,767.72-17,619.19-7,102.34

Finding the Fourth Proportional to 12,767.72, 17,619.19 and 7,102.34

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Solution

The fourth proportional to 12,767.72, 17,619.19 and 7,102.34 is: 9,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.72 : 17,619.19 = 7,102.34 : x
  2. Step 2: Convert to fraction form
    12,767.72/17,619.19 = 7,102.34/x
  3. Step 3: Cross multiply
    12,767.72x = 17,619.19 × 7,102.34
  4. Step 4: Simplify right side
    12,767.72x = 125,137,442.39
  5. Step 5: Solve for x
    x = 125,137,442.39/12,767.72
  6. Step 6: Final answer
    x = 9,801.08

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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.