Home / 8,461.20-11,680.36-6,223.44

Finding the Fourth Proportional to 8,461.20, 11,680.36 and 6,223.44

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Solution

The fourth proportional to 8,461.20, 11,680.36 and 6,223.44 is: 8,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.20 : 11,680.36 = 6,223.44 : x
  2. Step 2: Convert to fraction form
    8,461.20/11,680.36 = 6,223.44/x
  3. Step 3: Cross multiply
    8,461.20x = 11,680.36 × 6,223.44
  4. Step 4: Simplify right side
    8,461.20x = 72,692,019.64
  5. Step 5: Solve for x
    x = 72,692,019.64/8,461.20
  6. Step 6: Final answer
    x = 8,591.22

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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.