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Finding the Fourth Proportional to 9,890.03, 14,840.90 and 3,654.45

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Solution

The fourth proportional to 9,890.03, 14,840.90 and 3,654.45 is: 5,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.03 : 14,840.90 = 3,654.45 : x
  2. Step 2: Convert to fraction form
    9,890.03/14,840.90 = 3,654.45/x
  3. Step 3: Cross multiply
    9,890.03x = 14,840.90 × 3,654.45
  4. Step 4: Simplify right side
    9,890.03x = 54,235,308.73
  5. Step 5: Solve for x
    x = 54,235,308.73/9,890.03
  6. Step 6: Final answer
    x = 5,483.84

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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.