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Finding the Fourth Proportional to 18,855.62, 28,240.36 and 9,001.82

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Solution

The fourth proportional to 18,855.62, 28,240.36 and 9,001.82 is: 13,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.62 : 28,240.36 = 9,001.82 : x
  2. Step 2: Convert to fraction form
    18,855.62/28,240.36 = 9,001.82/x
  3. Step 3: Cross multiply
    18,855.62x = 28,240.36 × 9,001.82
  4. Step 4: Simplify right side
    18,855.62x = 254,214,637.46
  5. Step 5: Solve for x
    x = 254,214,637.46/18,855.62
  6. Step 6: Final answer
    x = 13,482.17

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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.