Home / 15,340.61-21,169.48-8,626.62

Finding the Fourth Proportional to 15,340.61, 21,169.48 and 8,626.62

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Solution

The fourth proportional to 15,340.61, 21,169.48 and 8,626.62 is: 11,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.61 : 21,169.48 = 8,626.62 : x
  2. Step 2: Convert to fraction form
    15,340.61/21,169.48 = 8,626.62/x
  3. Step 3: Cross multiply
    15,340.61x = 21,169.48 × 8,626.62
  4. Step 4: Simplify right side
    15,340.61x = 182,621,059.56
  5. Step 5: Solve for x
    x = 182,621,059.56/15,340.61
  6. Step 6: Final answer
    x = 11,904.42

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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.