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Finding the Fourth Proportional to 18,425.18, 27,617.09 and 7,328.88

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Solution

The fourth proportional to 18,425.18, 27,617.09 and 7,328.88 is: 10,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.18 : 27,617.09 = 7,328.88 : x
  2. Step 2: Convert to fraction form
    18,425.18/27,617.09 = 7,328.88/x
  3. Step 3: Cross multiply
    18,425.18x = 27,617.09 × 7,328.88
  4. Step 4: Simplify right side
    18,425.18x = 202,402,301.91
  5. Step 5: Solve for x
    x = 202,402,301.91/18,425.18
  6. Step 6: Final answer
    x = 10,985.09

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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.