Home / 8,782.41-12,122.12-5,007.54

Finding the Fourth Proportional to 8,782.41, 12,122.12 and 5,007.54

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Solution

The fourth proportional to 8,782.41, 12,122.12 and 5,007.54 is: 6,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.41 : 12,122.12 = 5,007.54 : x
  2. Step 2: Convert to fraction form
    8,782.41/12,122.12 = 5,007.54/x
  3. Step 3: Cross multiply
    8,782.41x = 12,122.12 × 5,007.54
  4. Step 4: Simplify right side
    8,782.41x = 60,702,000.78
  5. Step 5: Solve for x
    x = 60,702,000.78/8,782.41
  6. Step 6: Final answer
    x = 6,911.77

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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.