Home / 13,341.20-18,410.36-7,372.76

Finding the Fourth Proportional to 13,341.20, 18,410.36 and 7,372.76

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Solution

The fourth proportional to 13,341.20, 18,410.36 and 7,372.76 is: 10,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.20 : 18,410.36 = 7,372.76 : x
  2. Step 2: Convert to fraction form
    13,341.20/18,410.36 = 7,372.76/x
  3. Step 3: Cross multiply
    13,341.20x = 18,410.36 × 7,372.76
  4. Step 4: Simplify right side
    13,341.20x = 135,735,036.88
  5. Step 5: Solve for x
    x = 135,735,036.88/13,341.20
  6. Step 6: Final answer
    x = 10,174.13

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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.