Home / 15,619.97-21,555.59-8,546.45

Finding the Fourth Proportional to 15,619.97, 21,555.59 and 8,546.45

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Solution

The fourth proportional to 15,619.97, 21,555.59 and 8,546.45 is: 11,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.97 : 21,555.59 = 8,546.45 : x
  2. Step 2: Convert to fraction form
    15,619.97/21,555.59 = 8,546.45/x
  3. Step 3: Cross multiply
    15,619.97x = 21,555.59 × 8,546.45
  4. Step 4: Simplify right side
    15,619.97x = 184,223,621.65
  5. Step 5: Solve for x
    x = 184,223,621.65/15,619.97
  6. Step 6: Final answer
    x = 11,794.11

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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.