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Finding the Fourth Proportional to 8,368.30, 12,544.59 and 2,817.76

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Solution

The fourth proportional to 8,368.30, 12,544.59 and 2,817.76 is: 4,223.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.30 : 12,544.59 = 2,817.76 : x
  2. Step 2: Convert to fraction form
    8,368.30/12,544.59 = 2,817.76/x
  3. Step 3: Cross multiply
    8,368.30x = 12,544.59 × 2,817.76
  4. Step 4: Simplify right side
    8,368.30x = 35,347,581.20
  5. Step 5: Solve for x
    x = 35,347,581.20/8,368.30
  6. Step 6: Final answer
    x = 4,223.99

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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.