Home / 12,727.65-17,570.19-8,485.80

Finding the Fourth Proportional to 12,727.65, 17,570.19 and 8,485.80

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Solution

The fourth proportional to 12,727.65, 17,570.19 and 8,485.80 is: 11,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727.65 : 17,570.19 = 8,485.80 : x
  2. Step 2: Convert to fraction form
    12,727.65/17,570.19 = 8,485.80/x
  3. Step 3: Cross multiply
    12,727.65x = 17,570.19 × 8,485.80
  4. Step 4: Simplify right side
    12,727.65x = 149,097,118.30
  5. Step 5: Solve for x
    x = 149,097,118.30/12,727.65
  6. Step 6: Final answer
    x = 11,714.43

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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.