Home / 13,621.06-20,426.32-5,299.94

Finding the Fourth Proportional to 13,621.06, 20,426.32 and 5,299.94

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Solution

The fourth proportional to 13,621.06, 20,426.32 and 5,299.94 is: 7,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.06 : 20,426.32 = 5,299.94 : x
  2. Step 2: Convert to fraction form
    13,621.06/20,426.32 = 5,299.94/x
  3. Step 3: Cross multiply
    13,621.06x = 20,426.32 × 5,299.94
  4. Step 4: Simplify right side
    13,621.06x = 108,258,270.42
  5. Step 5: Solve for x
    x = 108,258,270.42/13,621.06
  6. Step 6: Final answer
    x = 7,947.86

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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.