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Finding the Fourth Proportional to 18,044.40, 27,068.74 and 7,521.55

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Solution

The fourth proportional to 18,044.40, 27,068.74 and 7,521.55 is: 11,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,044.40 : 27,068.74 = 7,521.55 : x
  2. Step 2: Convert to fraction form
    18,044.40/27,068.74 = 7,521.55/x
  3. Step 3: Cross multiply
    18,044.40x = 27,068.74 × 7,521.55
  4. Step 4: Simplify right side
    18,044.40x = 203,598,881.35
  5. Step 5: Solve for x
    x = 203,598,881.35/18,044.40
  6. Step 6: Final answer
    x = 11,283.22

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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.