Home / 13,800.87-19,039.68-9,019.26

Finding the Fourth Proportional to 13,800.87, 19,039.68 and 9,019.26

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Solution

The fourth proportional to 13,800.87, 19,039.68 and 9,019.26 is: 12,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.87 : 19,039.68 = 9,019.26 : x
  2. Step 2: Convert to fraction form
    13,800.87/19,039.68 = 9,019.26/x
  3. Step 3: Cross multiply
    13,800.87x = 19,039.68 × 9,019.26
  4. Step 4: Simplify right side
    13,800.87x = 171,723,824.24
  5. Step 5: Solve for x
    x = 171,723,824.24/13,800.87
  6. Step 6: Final answer
    x = 12,442.97

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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.