Home / 8,378.44-11,562.40-4,842.79

Finding the Fourth Proportional to 8,378.44, 11,562.40 and 4,842.79

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Solution

The fourth proportional to 8,378.44, 11,562.40 and 4,842.79 is: 6,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.44 : 11,562.40 = 4,842.79 : x
  2. Step 2: Convert to fraction form
    8,378.44/11,562.40 = 4,842.79/x
  3. Step 3: Cross multiply
    8,378.44x = 11,562.40 × 4,842.79
  4. Step 4: Simplify right side
    8,378.44x = 55,994,225.00
  5. Step 5: Solve for x
    x = 55,994,225.00/8,378.44
  6. Step 6: Final answer
    x = 6,683.13

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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.