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Finding the Fourth Proportional to 8,878.70, 13,318.05 and 4,983.02

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Solution

The fourth proportional to 8,878.70, 13,318.05 and 4,983.02 is: 7,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.70 : 13,318.05 = 4,983.02 : x
  2. Step 2: Convert to fraction form
    8,878.70/13,318.05 = 4,983.02/x
  3. Step 3: Cross multiply
    8,878.70x = 13,318.05 × 4,983.02
  4. Step 4: Simplify right side
    8,878.70x = 66,364,109.51
  5. Step 5: Solve for x
    x = 66,364,109.51/8,878.70
  6. Step 6: Final answer
    x = 7,474.53

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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.