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Finding the Fourth Proportional to 9,346.80, 14,005.80 and 8,108.40

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Solution

The fourth proportional to 9,346.80, 14,005.80 and 8,108.40 is: 12,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,346.80 : 14,005.80 = 8,108.40 : x
  2. Step 2: Convert to fraction form
    9,346.80/14,005.80 = 8,108.40/x
  3. Step 3: Cross multiply
    9,346.80x = 14,005.80 × 8,108.40
  4. Step 4: Simplify right side
    9,346.80x = 113,564,628.72
  5. Step 5: Solve for x
    x = 113,564,628.72/9,346.80
  6. Step 6: Final answer
    x = 12,150.11

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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.