Home / 12,470.05-18,708.63-3,705.13

Finding the Fourth Proportional to 12,470.05, 18,708.63 and 3,705.13

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Solution

The fourth proportional to 12,470.05, 18,708.63 and 3,705.13 is: 5,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.05 : 18,708.63 = 3,705.13 : x
  2. Step 2: Convert to fraction form
    12,470.05/18,708.63 = 3,705.13/x
  3. Step 3: Cross multiply
    12,470.05x = 18,708.63 × 3,705.13
  4. Step 4: Simplify right side
    12,470.05x = 69,317,906.27
  5. Step 5: Solve for x
    x = 69,317,906.27/12,470.05
  6. Step 6: Final answer
    x = 5,558.75

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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.