Home / 13,387.80-20,087.20-5,887.50

Finding the Fourth Proportional to 13,387.80, 20,087.20 and 5,887.50

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Solution

The fourth proportional to 13,387.80, 20,087.20 and 5,887.50 is: 8,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.80 : 20,087.20 = 5,887.50 : x
  2. Step 2: Convert to fraction form
    13,387.80/20,087.20 = 5,887.50/x
  3. Step 3: Cross multiply
    13,387.80x = 20,087.20 × 5,887.50
  4. Step 4: Simplify right side
    13,387.80x = 118,263,289.56
  5. Step 5: Solve for x
    x = 118,263,289.56/13,387.80
  6. Step 6: Final answer
    x = 8,833.66

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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.