Home / 13,823.72-19,074.36-13,123.16

Finding the Fourth Proportional to 13,823.72, 19,074.36 and 13,123.16

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Solution

The fourth proportional to 13,823.72, 19,074.36 and 13,123.16 is: 18,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.72 : 19,074.36 = 13,123.16 : x
  2. Step 2: Convert to fraction form
    13,823.72/19,074.36 = 13,123.16/x
  3. Step 3: Cross multiply
    13,823.72x = 19,074.36 × 13,123.16
  4. Step 4: Simplify right side
    13,823.72x = 250,315,878.18
  5. Step 5: Solve for x
    x = 250,315,878.18/13,823.72
  6. Step 6: Final answer
    x = 18,107.71

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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.