Home / 8,440.14-11,647.32-4,663.55

Finding the Fourth Proportional to 8,440.14, 11,647.32 and 4,663.55

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Solution

The fourth proportional to 8,440.14, 11,647.32 and 4,663.55 is: 6,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.14 : 11,647.32 = 4,663.55 : x
  2. Step 2: Convert to fraction form
    8,440.14/11,647.32 = 4,663.55/x
  3. Step 3: Cross multiply
    8,440.14x = 11,647.32 × 4,663.55
  4. Step 4: Simplify right side
    8,440.14x = 54,317,800.95
  5. Step 5: Solve for x
    x = 54,317,800.95/8,440.14
  6. Step 6: Final answer
    x = 6,435.65

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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.