Home / 9,306.36-12,840.81-5,529

Finding the Fourth Proportional to 9,306.36, 12,840.81 and 5,529

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Solution

The fourth proportional to 9,306.36, 12,840.81 and 5,529 is: 7,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.36 : 12,840.81 = 5,529 : x
  2. Step 2: Convert to fraction form
    9,306.36/12,840.81 = 5,529/x
  3. Step 3: Cross multiply
    9,306.36x = 12,840.81 × 5,529
  4. Step 4: Simplify right side
    9,306.36x = 70,996,838.49
  5. Step 5: Solve for x
    x = 70,996,838.49/9,306.36
  6. Step 6: Final answer
    x = 7,628.85

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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.