Home / 8,784.40-13,172.76-2,626.96

Finding the Fourth Proportional to 8,784.40, 13,172.76 and 2,626.96

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Solution

The fourth proportional to 8,784.40, 13,172.76 and 2,626.96 is: 3,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.40 : 13,172.76 = 2,626.96 : x
  2. Step 2: Convert to fraction form
    8,784.40/13,172.76 = 2,626.96/x
  3. Step 3: Cross multiply
    8,784.40x = 13,172.76 × 2,626.96
  4. Step 4: Simplify right side
    8,784.40x = 34,604,313.61
  5. Step 5: Solve for x
    x = 34,604,313.61/8,784.40
  6. Step 6: Final answer
    x = 3,939.29

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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.