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Finding the Fourth Proportional to 8,160.35, 12,240.99 and 2,316.50

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Solution

The fourth proportional to 8,160.35, 12,240.99 and 2,316.50 is: 3,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.35 : 12,240.99 = 2,316.50 : x
  2. Step 2: Convert to fraction form
    8,160.35/12,240.99 = 2,316.50/x
  3. Step 3: Cross multiply
    8,160.35x = 12,240.99 × 2,316.50
  4. Step 4: Simplify right side
    8,160.35x = 28,356,253.34
  5. Step 5: Solve for x
    x = 28,356,253.34/8,160.35
  6. Step 6: Final answer
    x = 3,474.88

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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.