Home / 8,784.20-12,122.15-5,007.53

Finding the Fourth Proportional to 8,784.20, 12,122.15 and 5,007.53

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Solution

The fourth proportional to 8,784.20, 12,122.15 and 5,007.53 is: 6,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.20 : 12,122.15 = 5,007.53 : x
  2. Step 2: Convert to fraction form
    8,784.20/12,122.15 = 5,007.53/x
  3. Step 3: Cross multiply
    8,784.20x = 12,122.15 × 5,007.53
  4. Step 4: Simplify right side
    8,784.20x = 60,701,981.70
  5. Step 5: Solve for x
    x = 60,701,981.70/8,784.20
  6. Step 6: Final answer
    x = 6,910.36

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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.