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Finding the Fourth Proportional to 9,399, 14,098.72 and 3,159.10

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Solution

The fourth proportional to 9,399, 14,098.72 and 3,159.10 is: 4,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399 : 14,098.72 = 3,159.10 : x
  2. Step 2: Convert to fraction form
    9,399/14,098.72 = 3,159.10/x
  3. Step 3: Cross multiply
    9,399x = 14,098.72 × 3,159.10
  4. Step 4: Simplify right side
    9,399x = 44,539,266.35
  5. Step 5: Solve for x
    x = 44,539,266.35/9,399
  6. Step 6: Final answer
    x = 4,738.72

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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.