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Finding the Fourth Proportional to 9,379.56, 14,070.48 and 4,379.40

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Solution

The fourth proportional to 9,379.56, 14,070.48 and 4,379.40 is: 6,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.56 : 14,070.48 = 4,379.40 : x
  2. Step 2: Convert to fraction form
    9,379.56/14,070.48 = 4,379.40/x
  3. Step 3: Cross multiply
    9,379.56x = 14,070.48 × 4,379.40
  4. Step 4: Simplify right side
    9,379.56x = 61,620,260.11
  5. Step 5: Solve for x
    x = 61,620,260.11/9,379.56
  6. Step 6: Final answer
    x = 6,569.63

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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.