Home / 8,219.10-12,332.70-4,711.80

Finding the Fourth Proportional to 8,219.10, 12,332.70 and 4,711.80

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Solution

The fourth proportional to 8,219.10, 12,332.70 and 4,711.80 is: 7,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.10 : 12,332.70 = 4,711.80 : x
  2. Step 2: Convert to fraction form
    8,219.10/12,332.70 = 4,711.80/x
  3. Step 3: Cross multiply
    8,219.10x = 12,332.70 × 4,711.80
  4. Step 4: Simplify right side
    8,219.10x = 58,109,215.86
  5. Step 5: Solve for x
    x = 58,109,215.86/8,219.10
  6. Step 6: Final answer
    x = 7,070.02

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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.