Home / 13,789.25-20,687.34-4,430.10

Finding the Fourth Proportional to 13,789.25, 20,687.34 and 4,430.10

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Solution

The fourth proportional to 13,789.25, 20,687.34 and 4,430.10 is: 6,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.25 : 20,687.34 = 4,430.10 : x
  2. Step 2: Convert to fraction form
    13,789.25/20,687.34 = 4,430.10/x
  3. Step 3: Cross multiply
    13,789.25x = 20,687.34 × 4,430.10
  4. Step 4: Simplify right side
    13,789.25x = 91,646,984.93
  5. Step 5: Solve for x
    x = 91,646,984.93/13,789.25
  6. Step 6: Final answer
    x = 6,646.27

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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.