Home / 19,199.94-28,789.05-7,948.91

Finding the Fourth Proportional to 19,199.94, 28,789.05 and 7,948.91

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Solution

The fourth proportional to 19,199.94, 28,789.05 and 7,948.91 is: 11,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.94 : 28,789.05 = 7,948.91 : x
  2. Step 2: Convert to fraction form
    19,199.94/28,789.05 = 7,948.91/x
  3. Step 3: Cross multiply
    19,199.94x = 28,789.05 × 7,948.91
  4. Step 4: Simplify right side
    19,199.94x = 228,841,669.22
  5. Step 5: Solve for x
    x = 228,841,669.22/19,199.94
  6. Step 6: Final answer
    x = 11,918.88

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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.