Home / 8,416.05-11,612.77-4,878.57

Finding the Fourth Proportional to 8,416.05, 11,612.77 and 4,878.57

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Solution

The fourth proportional to 8,416.05, 11,612.77 and 4,878.57 is: 6,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.05 : 11,612.77 = 4,878.57 : x
  2. Step 2: Convert to fraction form
    8,416.05/11,612.77 = 4,878.57/x
  3. Step 3: Cross multiply
    8,416.05x = 11,612.77 × 4,878.57
  4. Step 4: Simplify right side
    8,416.05x = 56,653,711.34
  5. Step 5: Solve for x
    x = 56,653,711.34/8,416.05
  6. Step 6: Final answer
    x = 6,731.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.