Home / 12,738.72-17,577.40-7,073.32

Finding the Fourth Proportional to 12,738.72, 17,577.40 and 7,073.32

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Solution

The fourth proportional to 12,738.72, 17,577.40 and 7,073.32 is: 9,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.72 : 17,577.40 = 7,073.32 : x
  2. Step 2: Convert to fraction form
    12,738.72/17,577.40 = 7,073.32/x
  3. Step 3: Cross multiply
    12,738.72x = 17,577.40 × 7,073.32
  4. Step 4: Simplify right side
    12,738.72x = 124,330,574.97
  5. Step 5: Solve for x
    x = 124,330,574.97/12,738.72
  6. Step 6: Final answer
    x = 9,760.05

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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.