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Finding the Fourth Proportional to 9,474.48, 14,216.52 and 6,390

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Solution

The fourth proportional to 9,474.48, 14,216.52 and 6,390 is: 9,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,474.48 : 14,216.52 = 6,390 : x
  2. Step 2: Convert to fraction form
    9,474.48/14,216.52 = 6,390/x
  3. Step 3: Cross multiply
    9,474.48x = 14,216.52 × 6,390
  4. Step 4: Simplify right side
    9,474.48x = 90,843,562.80
  5. Step 5: Solve for x
    x = 90,843,562.80/9,474.48
  6. Step 6: Final answer
    x = 9,588.24

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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.