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Finding the Fourth Proportional to 8,917.18, 13,363.02 and 5,013.40

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Solution

The fourth proportional to 8,917.18, 13,363.02 and 5,013.40 is: 7,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.18 : 13,363.02 = 5,013.40 : x
  2. Step 2: Convert to fraction form
    8,917.18/13,363.02 = 5,013.40/x
  3. Step 3: Cross multiply
    8,917.18x = 13,363.02 × 5,013.40
  4. Step 4: Simplify right side
    8,917.18x = 66,994,164.47
  5. Step 5: Solve for x
    x = 66,994,164.47/8,917.18
  6. Step 6: Final answer
    x = 7,512.93

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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.