Home / 19,201.20-28,802.10-7,956.36

Finding the Fourth Proportional to 19,201.20, 28,802.10 and 7,956.36

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Solution

The fourth proportional to 19,201.20, 28,802.10 and 7,956.36 is: 11,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.20 : 28,802.10 = 7,956.36 : x
  2. Step 2: Convert to fraction form
    19,201.20/28,802.10 = 7,956.36/x
  3. Step 3: Cross multiply
    19,201.20x = 28,802.10 × 7,956.36
  4. Step 4: Simplify right side
    19,201.20x = 229,159,876.36
  5. Step 5: Solve for x
    x = 229,159,876.36/19,201.20
  6. Step 6: Final answer
    x = 11,934.66

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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.