Home / 8,240.20-12,365.70-4,730.20

Finding the Fourth Proportional to 8,240.20, 12,365.70 and 4,730.20

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Solution

The fourth proportional to 8,240.20, 12,365.70 and 4,730.20 is: 7,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.20 : 12,365.70 = 4,730.20 : x
  2. Step 2: Convert to fraction form
    8,240.20/12,365.70 = 4,730.20/x
  3. Step 3: Cross multiply
    8,240.20x = 12,365.70 × 4,730.20
  4. Step 4: Simplify right side
    8,240.20x = 58,492,234.14
  5. Step 5: Solve for x
    x = 58,492,234.14/8,240.20
  6. Step 6: Final answer
    x = 7,098.40

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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.