Home / 11,574.72-15,974.56-6,860.80

Finding the Fourth Proportional to 11,574.72, 15,974.56 and 6,860.80

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Solution

The fourth proportional to 11,574.72, 15,974.56 and 6,860.80 is: 9,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,574.72 : 15,974.56 = 6,860.80 : x
  2. Step 2: Convert to fraction form
    11,574.72/15,974.56 = 6,860.80/x
  3. Step 3: Cross multiply
    11,574.72x = 15,974.56 × 6,860.80
  4. Step 4: Simplify right side
    11,574.72x = 109,598,261.25
  5. Step 5: Solve for x
    x = 109,598,261.25/11,574.72
  6. Step 6: Final answer
    x = 9,468.76

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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.