Home / 13,528.62-20,195.33-12,922.13

Finding the Fourth Proportional to 13,528.62, 20,195.33 and 12,922.13

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Solution

The fourth proportional to 13,528.62, 20,195.33 and 12,922.13 is: 19,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.62 : 20,195.33 = 12,922.13 : x
  2. Step 2: Convert to fraction form
    13,528.62/20,195.33 = 12,922.13/x
  3. Step 3: Cross multiply
    13,528.62x = 20,195.33 × 12,922.13
  4. Step 4: Simplify right side
    13,528.62x = 260,966,665.53
  5. Step 5: Solve for x
    x = 260,966,665.53/13,528.62
  6. Step 6: Final answer
    x = 19,289.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.