Home / 8,415.15-11,612.90-4,880.41

Finding the Fourth Proportional to 8,415.15, 11,612.90 and 4,880.41

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Solution

The fourth proportional to 8,415.15, 11,612.90 and 4,880.41 is: 6,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.15 : 11,612.90 = 4,880.41 : x
  2. Step 2: Convert to fraction form
    8,415.15/11,612.90 = 4,880.41/x
  3. Step 3: Cross multiply
    8,415.15x = 11,612.90 × 4,880.41
  4. Step 4: Simplify right side
    8,415.15x = 56,675,696.46
  5. Step 5: Solve for x
    x = 56,675,696.46/8,415.15
  6. Step 6: Final answer
    x = 6,734.96

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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.