Home / 19,783.66-29,654.99-12,371.11

Finding the Fourth Proportional to 19,783.66, 29,654.99 and 12,371.11

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Solution

The fourth proportional to 19,783.66, 29,654.99 and 12,371.11 is: 18,543.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.66 : 29,654.99 = 12,371.11 : x
  2. Step 2: Convert to fraction form
    19,783.66/29,654.99 = 12,371.11/x
  3. Step 3: Cross multiply
    19,783.66x = 29,654.99 × 12,371.11
  4. Step 4: Simplify right side
    19,783.66x = 366,864,933.21
  5. Step 5: Solve for x
    x = 366,864,933.21/19,783.66
  6. Step 6: Final answer
    x = 18,543.84

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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.