Home / 6,345.20-9,520.80-4,266.20

Finding the Fourth Proportional to 6,345.20, 9,520.80 and 4,266.20

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Solution

The fourth proportional to 6,345.20, 9,520.80 and 4,266.20 is: 6,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.20 : 9,520.80 = 4,266.20 : x
  2. Step 2: Convert to fraction form
    6,345.20/9,520.80 = 4,266.20/x
  3. Step 3: Cross multiply
    6,345.20x = 9,520.80 × 4,266.20
  4. Step 4: Simplify right side
    6,345.20x = 40,617,636.96
  5. Step 5: Solve for x
    x = 40,617,636.96/6,345.20
  6. Step 6: Final answer
    x = 6,401.32

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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.