Home / 8,267.40-12,389.76-5,662.44

Finding the Fourth Proportional to 8,267.40, 12,389.76 and 5,662.44

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Solution

The fourth proportional to 8,267.40, 12,389.76 and 5,662.44 is: 8,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,267.40 : 12,389.76 = 5,662.44 : x
  2. Step 2: Convert to fraction form
    8,267.40/12,389.76 = 5,662.44/x
  3. Step 3: Cross multiply
    8,267.40x = 12,389.76 × 5,662.44
  4. Step 4: Simplify right side
    8,267.40x = 70,156,272.61
  5. Step 5: Solve for x
    x = 70,156,272.61/8,267.40
  6. Step 6: Final answer
    x = 8,485.89

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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.