Home / 11,921.70-17,892-6,303.36

Finding the Fourth Proportional to 11,921.70, 17,892 and 6,303.36

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Solution

The fourth proportional to 11,921.70, 17,892 and 6,303.36 is: 9,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.70 : 17,892 = 6,303.36 : x
  2. Step 2: Convert to fraction form
    11,921.70/17,892 = 6,303.36/x
  3. Step 3: Cross multiply
    11,921.70x = 17,892 × 6,303.36
  4. Step 4: Simplify right side
    11,921.70x = 112,779,717.12
  5. Step 5: Solve for x
    x = 112,779,717.12/11,921.70
  6. Step 6: Final answer
    x = 9,460.04

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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.