Home / 8,270.88-12,359.10-6,285.60

Finding the Fourth Proportional to 8,270.88, 12,359.10 and 6,285.60

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Solution

The fourth proportional to 8,270.88, 12,359.10 and 6,285.60 is: 9,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.88 : 12,359.10 = 6,285.60 : x
  2. Step 2: Convert to fraction form
    8,270.88/12,359.10 = 6,285.60/x
  3. Step 3: Cross multiply
    8,270.88x = 12,359.10 × 6,285.60
  4. Step 4: Simplify right side
    8,270.88x = 77,684,358.96
  5. Step 5: Solve for x
    x = 77,684,358.96/8,270.88
  6. Step 6: Final answer
    x = 9,392.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.