Home / 8,721.36-13,082.34-3,457.37

Finding the Fourth Proportional to 8,721.36, 13,082.34 and 3,457.37

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Solution

The fourth proportional to 8,721.36, 13,082.34 and 3,457.37 is: 5,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.36 : 13,082.34 = 3,457.37 : x
  2. Step 2: Convert to fraction form
    8,721.36/13,082.34 = 3,457.37/x
  3. Step 3: Cross multiply
    8,721.36x = 13,082.34 × 3,457.37
  4. Step 4: Simplify right side
    8,721.36x = 45,230,424.43
  5. Step 5: Solve for x
    x = 45,230,424.43/8,721.36
  6. Step 6: Final answer
    x = 5,186.17

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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.