Home / 13,947.21-20,904.57-5,176.53

Finding the Fourth Proportional to 13,947.21, 20,904.57 and 5,176.53

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Solution

The fourth proportional to 13,947.21, 20,904.57 and 5,176.53 is: 7,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.21 : 20,904.57 = 5,176.53 : x
  2. Step 2: Convert to fraction form
    13,947.21/20,904.57 = 5,176.53/x
  3. Step 3: Cross multiply
    13,947.21x = 20,904.57 × 5,176.53
  4. Step 4: Simplify right side
    13,947.21x = 108,213,133.74
  5. Step 5: Solve for x
    x = 108,213,133.74/13,947.21
  6. Step 6: Final answer
    x = 7,758.77

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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.