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Finding the Fourth Proportional to 19,101.70, 28,658.55 and 9,241.30

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Solution

The fourth proportional to 19,101.70, 28,658.55 and 9,241.30 is: 13,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.70 : 28,658.55 = 9,241.30 : x
  2. Step 2: Convert to fraction form
    19,101.70/28,658.55 = 9,241.30/x
  3. Step 3: Cross multiply
    19,101.70x = 28,658.55 × 9,241.30
  4. Step 4: Simplify right side
    19,101.70x = 264,842,258.12
  5. Step 5: Solve for x
    x = 264,842,258.12/19,101.70
  6. Step 6: Final answer
    x = 13,864.85

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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.