Home / 8,623.60-12,937.20-2,784.22

Finding the Fourth Proportional to 8,623.60, 12,937.20 and 2,784.22

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Solution

The fourth proportional to 8,623.60, 12,937.20 and 2,784.22 is: 4,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.60 : 12,937.20 = 2,784.22 : x
  2. Step 2: Convert to fraction form
    8,623.60/12,937.20 = 2,784.22/x
  3. Step 3: Cross multiply
    8,623.60x = 12,937.20 × 2,784.22
  4. Step 4: Simplify right side
    8,623.60x = 36,020,010.98
  5. Step 5: Solve for x
    x = 36,020,010.98/8,623.60
  6. Step 6: Final answer
    x = 4,176.91

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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.