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Finding the Fourth Proportional to 14,490.73, 19,994.13 and 8,520.22

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Solution

The fourth proportional to 14,490.73, 19,994.13 and 8,520.22 is: 11,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.73 : 19,994.13 = 8,520.22 : x
  2. Step 2: Convert to fraction form
    14,490.73/19,994.13 = 8,520.22/x
  3. Step 3: Cross multiply
    14,490.73x = 19,994.13 × 8,520.22
  4. Step 4: Simplify right side
    14,490.73x = 170,354,386.31
  5. Step 5: Solve for x
    x = 170,354,386.31/14,490.73
  6. Step 6: Final answer
    x = 11,756.09

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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.