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Finding the Fourth Proportional to 9,323.71, 13,985.10 and 3,479.86

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Solution

The fourth proportional to 9,323.71, 13,985.10 and 3,479.86 is: 5,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.71 : 13,985.10 = 3,479.86 : x
  2. Step 2: Convert to fraction form
    9,323.71/13,985.10 = 3,479.86/x
  3. Step 3: Cross multiply
    9,323.71x = 13,985.10 × 3,479.86
  4. Step 4: Simplify right side
    9,323.71x = 48,666,155.12
  5. Step 5: Solve for x
    x = 48,666,155.12/9,323.71
  6. Step 6: Final answer
    x = 5,219.61

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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.