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Finding the Fourth Proportional to 18,679.35, 28,035.46 and 9,801.03

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Solution

The fourth proportional to 18,679.35, 28,035.46 and 9,801.03 is: 14,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.35 : 28,035.46 = 9,801.03 : x
  2. Step 2: Convert to fraction form
    18,679.35/28,035.46 = 9,801.03/x
  3. Step 3: Cross multiply
    18,679.35x = 28,035.46 × 9,801.03
  4. Step 4: Simplify right side
    18,679.35x = 274,776,291.64
  5. Step 5: Solve for x
    x = 274,776,291.64/18,679.35
  6. Step 6: Final answer
    x = 14,710.17

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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.