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Finding the Fourth Proportional to 19,224.63, 28,823.10 and 11,813.78

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Solution

The fourth proportional to 19,224.63, 28,823.10 and 11,813.78 is: 17,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.63 : 28,823.10 = 11,813.78 : x
  2. Step 2: Convert to fraction form
    19,224.63/28,823.10 = 11,813.78/x
  3. Step 3: Cross multiply
    19,224.63x = 28,823.10 × 11,813.78
  4. Step 4: Simplify right side
    19,224.63x = 340,509,618.20
  5. Step 5: Solve for x
    x = 340,509,618.20/19,224.63
  6. Step 6: Final answer
    x = 17,712.15

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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.