Home / 14,904.20-20,555.81-13,107.83

Finding the Fourth Proportional to 14,904.20, 20,555.81 and 13,107.83

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Solution

The fourth proportional to 14,904.20, 20,555.81 and 13,107.83 is: 18,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.20 : 20,555.81 = 13,107.83 : x
  2. Step 2: Convert to fraction form
    14,904.20/20,555.81 = 13,107.83/x
  3. Step 3: Cross multiply
    14,904.20x = 20,555.81 × 13,107.83
  4. Step 4: Simplify right side
    14,904.20x = 269,441,943.83
  5. Step 5: Solve for x
    x = 269,441,943.83/14,904.20
  6. Step 6: Final answer
    x = 18,078.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.