Home / 14,255.87-21,388.55-8,984.79

Finding the Fourth Proportional to 14,255.87, 21,388.55 and 8,984.79

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Solution

The fourth proportional to 14,255.87, 21,388.55 and 8,984.79 is: 13,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.87 : 21,388.55 = 8,984.79 : x
  2. Step 2: Convert to fraction form
    14,255.87/21,388.55 = 8,984.79/x
  3. Step 3: Cross multiply
    14,255.87x = 21,388.55 × 8,984.79
  4. Step 4: Simplify right side
    14,255.87x = 192,171,585.23
  5. Step 5: Solve for x
    x = 192,171,585.23/14,255.87
  6. Step 6: Final answer
    x = 13,480.18

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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.