Home / 13,854.96-20,781.81-5,089.23

Finding the Fourth Proportional to 13,854.96, 20,781.81 and 5,089.23

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Solution

The fourth proportional to 13,854.96, 20,781.81 and 5,089.23 is: 7,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.96 : 20,781.81 = 5,089.23 : x
  2. Step 2: Convert to fraction form
    13,854.96/20,781.81 = 5,089.23/x
  3. Step 3: Cross multiply
    13,854.96x = 20,781.81 × 5,089.23
  4. Step 4: Simplify right side
    13,854.96x = 105,763,410.91
  5. Step 5: Solve for x
    x = 105,763,410.91/13,854.96
  6. Step 6: Final answer
    x = 7,633.61

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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.