Home / 8,784.75-12,122.36-5,008.53

Finding the Fourth Proportional to 8,784.75, 12,122.36 and 5,008.53

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Solution

The fourth proportional to 8,784.75, 12,122.36 and 5,008.53 is: 6,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.75 : 12,122.36 = 5,008.53 : x
  2. Step 2: Convert to fraction form
    8,784.75/12,122.36 = 5,008.53/x
  3. Step 3: Cross multiply
    8,784.75x = 12,122.36 × 5,008.53
  4. Step 4: Simplify right side
    8,784.75x = 60,715,242.93
  5. Step 5: Solve for x
    x = 60,715,242.93/8,784.75
  6. Step 6: Final answer
    x = 6,911.43

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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.