Home / 8,217.79-11,337.78-4,678.50

Finding the Fourth Proportional to 8,217.79, 11,337.78 and 4,678.50

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Solution

The fourth proportional to 8,217.79, 11,337.78 and 4,678.50 is: 6,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.79 : 11,337.78 = 4,678.50 : x
  2. Step 2: Convert to fraction form
    8,217.79/11,337.78 = 4,678.50/x
  3. Step 3: Cross multiply
    8,217.79x = 11,337.78 × 4,678.50
  4. Step 4: Simplify right side
    8,217.79x = 53,043,803.73
  5. Step 5: Solve for x
    x = 53,043,803.73/8,217.79
  6. Step 6: Final answer
    x = 6,454.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.