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Finding the Fourth Proportional to 6,339.20, 8,730.08 and 6,203.52

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Solution

The fourth proportional to 6,339.20, 8,730.08 and 6,203.52 is: 8,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.20 : 8,730.08 = 6,203.52 : x
  2. Step 2: Convert to fraction form
    6,339.20/8,730.08 = 6,203.52/x
  3. Step 3: Cross multiply
    6,339.20x = 8,730.08 × 6,203.52
  4. Step 4: Simplify right side
    6,339.20x = 54,157,225.88
  5. Step 5: Solve for x
    x = 54,157,225.88/6,339.20
  6. Step 6: Final answer
    x = 8,543.23

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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.