Home / 8,622.50-12,934.22-3,688.79

Finding the Fourth Proportional to 8,622.50, 12,934.22 and 3,688.79

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Solution

The fourth proportional to 8,622.50, 12,934.22 and 3,688.79 is: 5,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.50 : 12,934.22 = 3,688.79 : x
  2. Step 2: Convert to fraction form
    8,622.50/12,934.22 = 3,688.79/x
  3. Step 3: Cross multiply
    8,622.50x = 12,934.22 × 3,688.79
  4. Step 4: Simplify right side
    8,622.50x = 47,711,538.28
  5. Step 5: Solve for x
    x = 47,711,538.28/8,622.50
  6. Step 6: Final answer
    x = 5,533.38

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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.