Home / 13,869.23-20,800.78-4,006.36

Finding the Fourth Proportional to 13,869.23, 20,800.78 and 4,006.36

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Solution

The fourth proportional to 13,869.23, 20,800.78 and 4,006.36 is: 6,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.23 : 20,800.78 = 4,006.36 : x
  2. Step 2: Convert to fraction form
    13,869.23/20,800.78 = 4,006.36/x
  3. Step 3: Cross multiply
    13,869.23x = 20,800.78 × 4,006.36
  4. Step 4: Simplify right side
    13,869.23x = 83,335,412.96
  5. Step 5: Solve for x
    x = 83,335,412.96/13,869.23
  6. Step 6: Final answer
    x = 6,008.65

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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.