Home / 6,612.45-9,919.49-2,915.61

Finding the Fourth Proportional to 6,612.45, 9,919.49 and 2,915.61

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Solution

The fourth proportional to 6,612.45, 9,919.49 and 2,915.61 is: 4,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.45 : 9,919.49 = 2,915.61 : x
  2. Step 2: Convert to fraction form
    6,612.45/9,919.49 = 2,915.61/x
  3. Step 3: Cross multiply
    6,612.45x = 9,919.49 × 2,915.61
  4. Step 4: Simplify right side
    6,612.45x = 28,921,349.66
  5. Step 5: Solve for x
    x = 28,921,349.66/6,612.45
  6. Step 6: Final answer
    x = 4,373.77

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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.