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Finding the Fourth Proportional to 9,900.30, 14,850.45 and 2,973.90

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Solution

The fourth proportional to 9,900.30, 14,850.45 and 2,973.90 is: 4,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.30 : 14,850.45 = 2,973.90 : x
  2. Step 2: Convert to fraction form
    9,900.30/14,850.45 = 2,973.90/x
  3. Step 3: Cross multiply
    9,900.30x = 14,850.45 × 2,973.90
  4. Step 4: Simplify right side
    9,900.30x = 44,163,753.26
  5. Step 5: Solve for x
    x = 44,163,753.26/9,900.30
  6. Step 6: Final answer
    x = 4,460.85

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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.