Home / 13,120.26-19,693.83-10,230.18

Finding the Fourth Proportional to 13,120.26, 19,693.83 and 10,230.18

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Solution

The fourth proportional to 13,120.26, 19,693.83 and 10,230.18 is: 15,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.26 : 19,693.83 = 10,230.18 : x
  2. Step 2: Convert to fraction form
    13,120.26/19,693.83 = 10,230.18/x
  3. Step 3: Cross multiply
    13,120.26x = 19,693.83 × 10,230.18
  4. Step 4: Simplify right side
    13,120.26x = 201,471,425.79
  5. Step 5: Solve for x
    x = 201,471,425.79/13,120.26
  6. Step 6: Final answer
    x = 15,355.75

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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.