Home / 15,640.68-21,584.41-8,566.64

Finding the Fourth Proportional to 15,640.68, 21,584.41 and 8,566.64

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Solution

The fourth proportional to 15,640.68, 21,584.41 and 8,566.64 is: 11,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.68 : 21,584.41 = 8,566.64 : x
  2. Step 2: Convert to fraction form
    15,640.68/21,584.41 = 8,566.64/x
  3. Step 3: Cross multiply
    15,640.68x = 21,584.41 × 8,566.64
  4. Step 4: Simplify right side
    15,640.68x = 184,905,870.08
  5. Step 5: Solve for x
    x = 184,905,870.08/15,640.68
  6. Step 6: Final answer
    x = 11,822.11

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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.