Home / 8,311.85-11,471.49-4,774.98

Finding the Fourth Proportional to 8,311.85, 11,471.49 and 4,774.98

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Solution

The fourth proportional to 8,311.85, 11,471.49 and 4,774.98 is: 6,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.85 : 11,471.49 = 4,774.98 : x
  2. Step 2: Convert to fraction form
    8,311.85/11,471.49 = 4,774.98/x
  3. Step 3: Cross multiply
    8,311.85x = 11,471.49 × 4,774.98
  4. Step 4: Simplify right side
    8,311.85x = 54,776,135.32
  5. Step 5: Solve for x
    x = 54,776,135.32/8,311.85
  6. Step 6: Final answer
    x = 6,590.13

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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.