Home / 10,972.24-16,465.66-5,129.30

Finding the Fourth Proportional to 10,972.24, 16,465.66 and 5,129.30

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Solution

The fourth proportional to 10,972.24, 16,465.66 and 5,129.30 is: 7,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.24 : 16,465.66 = 5,129.30 : x
  2. Step 2: Convert to fraction form
    10,972.24/16,465.66 = 5,129.30/x
  3. Step 3: Cross multiply
    10,972.24x = 16,465.66 × 5,129.30
  4. Step 4: Simplify right side
    10,972.24x = 84,457,309.84
  5. Step 5: Solve for x
    x = 84,457,309.84/10,972.24
  6. Step 6: Final answer
    x = 7,697.36

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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.