Home / 8,785.48-13,178.04-2,211.70

Finding the Fourth Proportional to 8,785.48, 13,178.04 and 2,211.70

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Solution

The fourth proportional to 8,785.48, 13,178.04 and 2,211.70 is: 3,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.48 : 13,178.04 = 2,211.70 : x
  2. Step 2: Convert to fraction form
    8,785.48/13,178.04 = 2,211.70/x
  3. Step 3: Cross multiply
    8,785.48x = 13,178.04 × 2,211.70
  4. Step 4: Simplify right side
    8,785.48x = 29,145,871.07
  5. Step 5: Solve for x
    x = 29,145,871.07/8,785.48
  6. Step 6: Final answer
    x = 3,317.50

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Double scale
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Similar ratio
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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.