Home / 8,140.10-12,214.20-4,632.80

Finding the Fourth Proportional to 8,140.10, 12,214.20 and 4,632.80

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Solution

The fourth proportional to 8,140.10, 12,214.20 and 4,632.80 is: 6,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.10 : 12,214.20 = 4,632.80 : x
  2. Step 2: Convert to fraction form
    8,140.10/12,214.20 = 4,632.80/x
  3. Step 3: Cross multiply
    8,140.10x = 12,214.20 × 4,632.80
  4. Step 4: Simplify right side
    8,140.10x = 56,585,945.76
  5. Step 5: Solve for x
    x = 56,585,945.76/8,140.10
  6. Step 6: Final answer
    x = 6,951.50

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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.