Home / 15,473.61-21,352.97-8,399.85

Finding the Fourth Proportional to 15,473.61, 21,352.97 and 8,399.85

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Solution

The fourth proportional to 15,473.61, 21,352.97 and 8,399.85 is: 11,591.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.61 : 21,352.97 = 8,399.85 : x
  2. Step 2: Convert to fraction form
    15,473.61/21,352.97 = 8,399.85/x
  3. Step 3: Cross multiply
    15,473.61x = 21,352.97 × 8,399.85
  4. Step 4: Simplify right side
    15,473.61x = 179,361,703.06
  5. Step 5: Solve for x
    x = 179,361,703.06/15,473.61
  6. Step 6: Final answer
    x = 11,591.46

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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.