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Finding the Fourth Proportional to 8,960.95, 12,351.72 and 7,069.33

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Solution

The fourth proportional to 8,960.95, 12,351.72 and 7,069.33 is: 9,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.95 : 12,351.72 = 7,069.33 : x
  2. Step 2: Convert to fraction form
    8,960.95/12,351.72 = 7,069.33/x
  3. Step 3: Cross multiply
    8,960.95x = 12,351.72 × 7,069.33
  4. Step 4: Simplify right side
    8,960.95x = 87,318,384.75
  5. Step 5: Solve for x
    x = 87,318,384.75/8,960.95
  6. Step 6: Final answer
    x = 9,744.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.