Home / 8,626.50-12,937.32-2,782.35

Finding the Fourth Proportional to 8,626.50, 12,937.32 and 2,782.35

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Solution

The fourth proportional to 8,626.50, 12,937.32 and 2,782.35 is: 4,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.50 : 12,937.32 = 2,782.35 : x
  2. Step 2: Convert to fraction form
    8,626.50/12,937.32 = 2,782.35/x
  3. Step 3: Cross multiply
    8,626.50x = 12,937.32 × 2,782.35
  4. Step 4: Simplify right side
    8,626.50x = 35,996,152.30
  5. Step 5: Solve for x
    x = 35,996,152.30/8,626.50
  6. Step 6: Final answer
    x = 4,172.74

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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.