Home / 8,378.96-11,558.68-5,350.89

Finding the Fourth Proportional to 8,378.96, 11,558.68 and 5,350.89

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Solution

The fourth proportional to 8,378.96, 11,558.68 and 5,350.89 is: 7,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.96 : 11,558.68 = 5,350.89 : x
  2. Step 2: Convert to fraction form
    8,378.96/11,558.68 = 5,350.89/x
  3. Step 3: Cross multiply
    8,378.96x = 11,558.68 × 5,350.89
  4. Step 4: Simplify right side
    8,378.96x = 61,849,243.55
  5. Step 5: Solve for x
    x = 61,849,243.55/8,378.96
  6. Step 6: Final answer
    x = 7,381.50

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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.