Home / 13,438.41-20,157.59-5,545.36

Finding the Fourth Proportional to 13,438.41, 20,157.59 and 5,545.36

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Solution

The fourth proportional to 13,438.41, 20,157.59 and 5,545.36 is: 8,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.41 : 20,157.59 = 5,545.36 : x
  2. Step 2: Convert to fraction form
    13,438.41/20,157.59 = 5,545.36/x
  3. Step 3: Cross multiply
    13,438.41x = 20,157.59 × 5,545.36
  4. Step 4: Simplify right side
    13,438.41x = 111,781,132.34
  5. Step 5: Solve for x
    x = 111,781,132.34/13,438.41
  6. Step 6: Final answer
    x = 8,318.03

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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.