Home / 13,390.67-20,077.90-5,993.75

Finding the Fourth Proportional to 13,390.67, 20,077.90 and 5,993.75

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Solution

The fourth proportional to 13,390.67, 20,077.90 and 5,993.75 is: 8,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.67 : 20,077.90 = 5,993.75 : x
  2. Step 2: Convert to fraction form
    13,390.67/20,077.90 = 5,993.75/x
  3. Step 3: Cross multiply
    13,390.67x = 20,077.90 × 5,993.75
  4. Step 4: Simplify right side
    13,390.67x = 120,341,906.76
  5. Step 5: Solve for x
    x = 120,341,906.76/13,390.67
  6. Step 6: Final answer
    x = 8,987.00

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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.