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Finding the Fourth Proportional to 8,959.74, 13,423.11 and 7,975.62

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Solution

The fourth proportional to 8,959.74, 13,423.11 and 7,975.62 is: 11,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.74 : 13,423.11 = 7,975.62 : x
  2. Step 2: Convert to fraction form
    8,959.74/13,423.11 = 7,975.62/x
  3. Step 3: Cross multiply
    8,959.74x = 13,423.11 × 7,975.62
  4. Step 4: Simplify right side
    8,959.74x = 107,057,624.58
  5. Step 5: Solve for x
    x = 107,057,624.58/8,959.74
  6. Step 6: Final answer
    x = 11,948.74

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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.