Home / 13,565.90-20,317.26-13,192.20

Finding the Fourth Proportional to 13,565.90, 20,317.26 and 13,192.20

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Solution

The fourth proportional to 13,565.90, 20,317.26 and 13,192.20 is: 19,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.90 : 20,317.26 = 13,192.20 : x
  2. Step 2: Convert to fraction form
    13,565.90/20,317.26 = 13,192.20/x
  3. Step 3: Cross multiply
    13,565.90x = 20,317.26 × 13,192.20
  4. Step 4: Simplify right side
    13,565.90x = 268,029,357.37
  5. Step 5: Solve for x
    x = 268,029,357.37/13,565.90
  6. Step 6: Final answer
    x = 19,757.58

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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.