Home / 18,817.87-25,969.51-11,262.77

Finding the Fourth Proportional to 18,817.87, 25,969.51 and 11,262.77

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Solution

The fourth proportional to 18,817.87, 25,969.51 and 11,262.77 is: 15,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.87 : 25,969.51 = 11,262.77 : x
  2. Step 2: Convert to fraction form
    18,817.87/25,969.51 = 11,262.77/x
  3. Step 3: Cross multiply
    18,817.87x = 25,969.51 × 11,262.77
  4. Step 4: Simplify right side
    18,817.87x = 292,488,618.14
  5. Step 5: Solve for x
    x = 292,488,618.14/18,817.87
  6. Step 6: Final answer
    x = 15,543.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.