Home / 11,148.80-16,715.10-4,571.60

Finding the Fourth Proportional to 11,148.80, 16,715.10 and 4,571.60

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Solution

The fourth proportional to 11,148.80, 16,715.10 and 4,571.60 is: 6,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.80 : 16,715.10 = 4,571.60 : x
  2. Step 2: Convert to fraction form
    11,148.80/16,715.10 = 4,571.60/x
  3. Step 3: Cross multiply
    11,148.80x = 16,715.10 × 4,571.60
  4. Step 4: Simplify right side
    11,148.80x = 76,414,751.16
  5. Step 5: Solve for x
    x = 76,414,751.16/11,148.80
  6. Step 6: Final answer
    x = 6,854.08

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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.