Home / 13,921.74-20,883.18-3,533.76

Finding the Fourth Proportional to 13,921.74, 20,883.18 and 3,533.76

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Solution

The fourth proportional to 13,921.74, 20,883.18 and 3,533.76 is: 5,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.74 : 20,883.18 = 3,533.76 : x
  2. Step 2: Convert to fraction form
    13,921.74/20,883.18 = 3,533.76/x
  3. Step 3: Cross multiply
    13,921.74x = 20,883.18 × 3,533.76
  4. Step 4: Simplify right side
    13,921.74x = 73,796,146.16
  5. Step 5: Solve for x
    x = 73,796,146.16/13,921.74
  6. Step 6: Final answer
    x = 5,300.78

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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.