Home / 10,987.52-16,476.39-7,896.56

Finding the Fourth Proportional to 10,987.52, 16,476.39 and 7,896.56

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Solution

The fourth proportional to 10,987.52, 16,476.39 and 7,896.56 is: 11,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.52 : 16,476.39 = 7,896.56 : x
  2. Step 2: Convert to fraction form
    10,987.52/16,476.39 = 7,896.56/x
  3. Step 3: Cross multiply
    10,987.52x = 16,476.39 × 7,896.56
  4. Step 4: Simplify right side
    10,987.52x = 130,106,719.84
  5. Step 5: Solve for x
    x = 130,106,719.84/10,987.52
  6. Step 6: Final answer
    x = 11,841.32

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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.