Home / 16,530.78-22,802.31-11,806.86

Finding the Fourth Proportional to 16,530.78, 22,802.31 and 11,806.86

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Solution

The fourth proportional to 16,530.78, 22,802.31 and 11,806.86 is: 16,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.78 : 22,802.31 = 11,806.86 : x
  2. Step 2: Convert to fraction form
    16,530.78/22,802.31 = 11,806.86/x
  3. Step 3: Cross multiply
    16,530.78x = 22,802.31 × 11,806.86
  4. Step 4: Simplify right side
    16,530.78x = 269,223,681.85
  5. Step 5: Solve for x
    x = 269,223,681.85/16,530.78
  6. Step 6: Final answer
    x = 16,286.21

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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.