Home / 13,877.40-20,797.62-5,104.20

Finding the Fourth Proportional to 13,877.40, 20,797.62 and 5,104.20

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Solution

The fourth proportional to 13,877.40, 20,797.62 and 5,104.20 is: 7,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.40 : 20,797.62 = 5,104.20 : x
  2. Step 2: Convert to fraction form
    13,877.40/20,797.62 = 5,104.20/x
  3. Step 3: Cross multiply
    13,877.40x = 20,797.62 × 5,104.20
  4. Step 4: Simplify right side
    13,877.40x = 106,155,212.00
  5. Step 5: Solve for x
    x = 106,155,212.00/13,877.40
  6. Step 6: Final answer
    x = 7,649.50

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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.