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Finding the Fourth Proportional to 8,480.46, 12,722.97 and 3,547.50

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Solution

The fourth proportional to 8,480.46, 12,722.97 and 3,547.50 is: 5,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.46 : 12,722.97 = 3,547.50 : x
  2. Step 2: Convert to fraction form
    8,480.46/12,722.97 = 3,547.50/x
  3. Step 3: Cross multiply
    8,480.46x = 12,722.97 × 3,547.50
  4. Step 4: Simplify right side
    8,480.46x = 45,134,736.08
  5. Step 5: Solve for x
    x = 45,134,736.08/8,480.46
  6. Step 6: Final answer
    x = 5,322.20

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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.