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Finding the Fourth Proportional to 9,372.12, 14,016.84 and 8,339.40

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Solution

The fourth proportional to 9,372.12, 14,016.84 and 8,339.40 is: 12,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.12 : 14,016.84 = 8,339.40 : x
  2. Step 2: Convert to fraction form
    9,372.12/14,016.84 = 8,339.40/x
  3. Step 3: Cross multiply
    9,372.12x = 14,016.84 × 8,339.40
  4. Step 4: Simplify right side
    9,372.12x = 116,892,035.50
  5. Step 5: Solve for x
    x = 116,892,035.50/9,372.12
  6. Step 6: Final answer
    x = 12,472.32

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1.5x scale

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.