Home / 19,239.72-28,838.60-9,866.68

Finding the Fourth Proportional to 19,239.72, 28,838.60 and 9,866.68

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Solution

The fourth proportional to 19,239.72, 28,838.60 and 9,866.68 is: 14,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.72 : 28,838.60 = 9,866.68 : x
  2. Step 2: Convert to fraction form
    19,239.72/28,838.60 = 9,866.68/x
  3. Step 3: Cross multiply
    19,239.72x = 28,838.60 × 9,866.68
  4. Step 4: Simplify right side
    19,239.72x = 284,541,237.85
  5. Step 5: Solve for x
    x = 284,541,237.85/19,239.72
  6. Step 6: Final answer
    x = 14,789.26

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1.5x scale

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.