Home / 13,694.46-18,898.31-7,406.83

Finding the Fourth Proportional to 13,694.46, 18,898.31 and 7,406.83

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Solution

The fourth proportional to 13,694.46, 18,898.31 and 7,406.83 is: 10,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.46 : 18,898.31 = 7,406.83 : x
  2. Step 2: Convert to fraction form
    13,694.46/18,898.31 = 7,406.83/x
  3. Step 3: Cross multiply
    13,694.46x = 18,898.31 × 7,406.83
  4. Step 4: Simplify right side
    13,694.46x = 139,976,569.46
  5. Step 5: Solve for x
    x = 139,976,569.46/13,694.46
  6. Step 6: Final answer
    x = 10,221.40

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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.