Home / 13,470.05-20,208.29-6,790.14

Finding the Fourth Proportional to 13,470.05, 20,208.29 and 6,790.14

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Solution

The fourth proportional to 13,470.05, 20,208.29 and 6,790.14 is: 10,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.05 : 20,208.29 = 6,790.14 : x
  2. Step 2: Convert to fraction form
    13,470.05/20,208.29 = 6,790.14/x
  3. Step 3: Cross multiply
    13,470.05x = 20,208.29 × 6,790.14
  4. Step 4: Simplify right side
    13,470.05x = 137,217,084.31
  5. Step 5: Solve for x
    x = 137,217,084.31/13,470.05
  6. Step 6: Final answer
    x = 10,186.83

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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.