Home / 13,868.54-20,800.49-4,005.17

Finding the Fourth Proportional to 13,868.54, 20,800.49 and 4,005.17

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Solution

The fourth proportional to 13,868.54, 20,800.49 and 4,005.17 is: 6,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.54 : 20,800.49 = 4,005.17 : x
  2. Step 2: Convert to fraction form
    13,868.54/20,800.49 = 4,005.17/x
  3. Step 3: Cross multiply
    13,868.54x = 20,800.49 × 4,005.17
  4. Step 4: Simplify right side
    13,868.54x = 83,309,374.51
  5. Step 5: Solve for x
    x = 83,309,374.51/13,868.54
  6. Step 6: Final answer
    x = 6,007.08

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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.