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Finding the Fourth Proportional to 8,776.32, 13,160.72 and 5,081.10

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Solution

The fourth proportional to 8,776.32, 13,160.72 and 5,081.10 is: 7,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.32 : 13,160.72 = 5,081.10 : x
  2. Step 2: Convert to fraction form
    8,776.32/13,160.72 = 5,081.10/x
  3. Step 3: Cross multiply
    8,776.32x = 13,160.72 × 5,081.10
  4. Step 4: Simplify right side
    8,776.32x = 66,870,908.99
  5. Step 5: Solve for x
    x = 66,870,908.99/8,776.32
  6. Step 6: Final answer
    x = 7,619.47

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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.