Home / 11,921.64-17,870.30-5,346.06

Finding the Fourth Proportional to 11,921.64, 17,870.30 and 5,346.06

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Solution

The fourth proportional to 11,921.64, 17,870.30 and 5,346.06 is: 8,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.64 : 17,870.30 = 5,346.06 : x
  2. Step 2: Convert to fraction form
    11,921.64/17,870.30 = 5,346.06/x
  3. Step 3: Cross multiply
    11,921.64x = 17,870.30 × 5,346.06
  4. Step 4: Simplify right side
    11,921.64x = 95,535,696.02
  5. Step 5: Solve for x
    x = 95,535,696.02/11,921.64
  6. Step 6: Final answer
    x = 8,013.64

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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.