Home / 13,623.30-20,391.57-13,106.58

Finding the Fourth Proportional to 13,623.30, 20,391.57 and 13,106.58

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Solution

The fourth proportional to 13,623.30, 20,391.57 and 13,106.58 is: 19,618.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.30 : 20,391.57 = 13,106.58 : x
  2. Step 2: Convert to fraction form
    13,623.30/20,391.57 = 13,106.58/x
  3. Step 3: Cross multiply
    13,623.30x = 20,391.57 × 13,106.58
  4. Step 4: Simplify right side
    13,623.30x = 267,263,743.53
  5. Step 5: Solve for x
    x = 267,263,743.53/13,623.30
  6. Step 6: Final answer
    x = 19,618.14

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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.