Home / 12,660.21-17,470.98-6,995.32

Finding the Fourth Proportional to 12,660.21, 17,470.98 and 6,995.32

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Solution

The fourth proportional to 12,660.21, 17,470.98 and 6,995.32 is: 9,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.21 : 17,470.98 = 6,995.32 : x
  2. Step 2: Convert to fraction form
    12,660.21/17,470.98 = 6,995.32/x
  3. Step 3: Cross multiply
    12,660.21x = 17,470.98 × 6,995.32
  4. Step 4: Simplify right side
    12,660.21x = 122,215,052.14
  5. Step 5: Solve for x
    x = 122,215,052.14/12,660.21
  6. Step 6: Final answer
    x = 9,653.48

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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.