Home / 13,789.40-20,683.66-4,429.38

Finding the Fourth Proportional to 13,789.40, 20,683.66 and 4,429.38

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Solution

The fourth proportional to 13,789.40, 20,683.66 and 4,429.38 is: 6,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.40 : 20,683.66 = 4,429.38 : x
  2. Step 2: Convert to fraction form
    13,789.40/20,683.66 = 4,429.38/x
  3. Step 3: Cross multiply
    13,789.40x = 20,683.66 × 4,429.38
  4. Step 4: Simplify right side
    13,789.40x = 91,615,789.93
  5. Step 5: Solve for x
    x = 91,615,789.93/13,789.40
  6. Step 6: Final answer
    x = 6,643.93

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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.