Home / 19,911.05-29,826.51-9,222.36

Finding the Fourth Proportional to 19,911.05, 29,826.51 and 9,222.36

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Solution

The fourth proportional to 19,911.05, 29,826.51 and 9,222.36 is: 13,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.05 : 29,826.51 = 9,222.36 : x
  2. Step 2: Convert to fraction form
    19,911.05/29,826.51 = 9,222.36/x
  3. Step 3: Cross multiply
    19,911.05x = 29,826.51 × 9,222.36
  4. Step 4: Simplify right side
    19,911.05x = 275,070,812.76
  5. Step 5: Solve for x
    x = 275,070,812.76/19,911.05
  6. Step 6: Final answer
    x = 13,814.98

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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.