Home / 12,587.44-17,370.84-6,998.56

Finding the Fourth Proportional to 12,587.44, 17,370.84 and 6,998.56

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Solution

The fourth proportional to 12,587.44, 17,370.84 and 6,998.56 is: 9,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.44 : 17,370.84 = 6,998.56 : x
  2. Step 2: Convert to fraction form
    12,587.44/17,370.84 = 6,998.56/x
  3. Step 3: Cross multiply
    12,587.44x = 17,370.84 × 6,998.56
  4. Step 4: Simplify right side
    12,587.44x = 121,570,865.99
  5. Step 5: Solve for x
    x = 121,570,865.99/12,587.44
  6. Step 6: Final answer
    x = 9,658.11

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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.