Home / 18,627.68-25,688.57-11,901.62

Finding the Fourth Proportional to 18,627.68, 25,688.57 and 11,901.62

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Solution

The fourth proportional to 18,627.68, 25,688.57 and 11,901.62 is: 16,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.68 : 25,688.57 = 11,901.62 : x
  2. Step 2: Convert to fraction form
    18,627.68/25,688.57 = 11,901.62/x
  3. Step 3: Cross multiply
    18,627.68x = 25,688.57 × 11,901.62
  4. Step 4: Simplify right side
    18,627.68x = 305,735,410.53
  5. Step 5: Solve for x
    x = 305,735,410.53/18,627.68
  6. Step 6: Final answer
    x = 16,412.97

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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.