Home / 18,004.20-27,006.30-11,783.40

Finding the Fourth Proportional to 18,004.20, 27,006.30 and 11,783.40

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Solution

The fourth proportional to 18,004.20, 27,006.30 and 11,783.40 is: 17,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.20 : 27,006.30 = 11,783.40 : x
  2. Step 2: Convert to fraction form
    18,004.20/27,006.30 = 11,783.40/x
  3. Step 3: Cross multiply
    18,004.20x = 27,006.30 × 11,783.40
  4. Step 4: Simplify right side
    18,004.20x = 318,226,035.42
  5. Step 5: Solve for x
    x = 318,226,035.42/18,004.20
  6. Step 6: Final answer
    x = 17,675.10

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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.