Home / 19,196.80-28,802.36-8,663.70

Finding the Fourth Proportional to 19,196.80, 28,802.36 and 8,663.70

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Solution

The fourth proportional to 19,196.80, 28,802.36 and 8,663.70 is: 12,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,196.80 : 28,802.36 = 8,663.70 : x
  2. Step 2: Convert to fraction form
    19,196.80/28,802.36 = 8,663.70/x
  3. Step 3: Cross multiply
    19,196.80x = 28,802.36 × 8,663.70
  4. Step 4: Simplify right side
    19,196.80x = 249,535,006.33
  5. Step 5: Solve for x
    x = 249,535,006.33/19,196.80
  6. Step 6: Final answer
    x = 12,998.78

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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.