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Finding the Fourth Proportional to 8,363.04, 12,491.60 and 7,883.22

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Solution

The fourth proportional to 8,363.04, 12,491.60 and 7,883.22 is: 11,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.04 : 12,491.60 = 7,883.22 : x
  2. Step 2: Convert to fraction form
    8,363.04/12,491.60 = 7,883.22/x
  3. Step 3: Cross multiply
    8,363.04x = 12,491.60 × 7,883.22
  4. Step 4: Simplify right side
    8,363.04x = 98,473,991.54
  5. Step 5: Solve for x
    x = 98,473,991.54/8,363.04
  6. Step 6: Final answer
    x = 11,774.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.