Home / 8,285.16-12,418.32-4,330.32

Finding the Fourth Proportional to 8,285.16, 12,418.32 and 4,330.32

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Solution

The fourth proportional to 8,285.16, 12,418.32 and 4,330.32 is: 6,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.16 : 12,418.32 = 4,330.32 : x
  2. Step 2: Convert to fraction form
    8,285.16/12,418.32 = 4,330.32/x
  3. Step 3: Cross multiply
    8,285.16x = 12,418.32 × 4,330.32
  4. Step 4: Simplify right side
    8,285.16x = 53,775,299.46
  5. Step 5: Solve for x
    x = 53,775,299.46/8,285.16
  6. Step 6: Final answer
    x = 6,490.56

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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.