Home / 19,299.72-28,948.06-8,911.56

Finding the Fourth Proportional to 19,299.72, 28,948.06 and 8,911.56

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Solution

The fourth proportional to 19,299.72, 28,948.06 and 8,911.56 is: 13,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.72 : 28,948.06 = 8,911.56 : x
  2. Step 2: Convert to fraction form
    19,299.72/28,948.06 = 8,911.56/x
  3. Step 3: Cross multiply
    19,299.72x = 28,948.06 × 8,911.56
  4. Step 4: Simplify right side
    19,299.72x = 257,972,373.57
  5. Step 5: Solve for x
    x = 257,972,373.57/19,299.72
  6. Step 6: Final answer
    x = 13,366.64

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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.