Home / 11,320.41-16,986.24-7,574.66

Finding the Fourth Proportional to 11,320.41, 16,986.24 and 7,574.66

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Solution

The fourth proportional to 11,320.41, 16,986.24 and 7,574.66 is: 11,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.41 : 16,986.24 = 7,574.66 : x
  2. Step 2: Convert to fraction form
    11,320.41/16,986.24 = 7,574.66/x
  3. Step 3: Cross multiply
    11,320.41x = 16,986.24 × 7,574.66
  4. Step 4: Simplify right side
    11,320.41x = 128,664,907.75
  5. Step 5: Solve for x
    x = 128,664,907.75/11,320.41
  6. Step 6: Final answer
    x = 11,365.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.