Home / 11,931.88-17,895.66-5,358.28

Finding the Fourth Proportional to 11,931.88, 17,895.66 and 5,358.28

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Solution

The fourth proportional to 11,931.88, 17,895.66 and 5,358.28 is: 8,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.88 : 17,895.66 = 5,358.28 : x
  2. Step 2: Convert to fraction form
    11,931.88/17,895.66 = 5,358.28/x
  3. Step 3: Cross multiply
    11,931.88x = 17,895.66 × 5,358.28
  4. Step 4: Simplify right side
    11,931.88x = 95,889,957.06
  5. Step 5: Solve for x
    x = 95,889,957.06/11,931.88
  6. Step 6: Final answer
    x = 8,036.45

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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.