Home / 8,320.61-12,484.56-2,774.75

Finding the Fourth Proportional to 8,320.61, 12,484.56 and 2,774.75

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Solution

The fourth proportional to 8,320.61, 12,484.56 and 2,774.75 is: 4,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.61 : 12,484.56 = 2,774.75 : x
  2. Step 2: Convert to fraction form
    8,320.61/12,484.56 = 2,774.75/x
  3. Step 3: Cross multiply
    8,320.61x = 12,484.56 × 2,774.75
  4. Step 4: Simplify right side
    8,320.61x = 34,641,470.44
  5. Step 5: Solve for x
    x = 34,641,470.44/8,320.61
  6. Step 6: Final answer
    x = 4,163.34

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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.