Home / 13,944.68-19,217.06-13,688.48

Finding the Fourth Proportional to 13,944.68, 19,217.06 and 13,688.48

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Solution

The fourth proportional to 13,944.68, 19,217.06 and 13,688.48 is: 18,863.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.68 : 19,217.06 = 13,688.48 : x
  2. Step 2: Convert to fraction form
    13,944.68/19,217.06 = 13,688.48/x
  3. Step 3: Cross multiply
    13,944.68x = 19,217.06 × 13,688.48
  4. Step 4: Simplify right side
    13,944.68x = 263,052,341.47
  5. Step 5: Solve for x
    x = 263,052,341.47/13,944.68
  6. Step 6: Final answer
    x = 18,863.99

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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.