Home / 11,357.10-15,672.96-6,321.53

Finding the Fourth Proportional to 11,357.10, 15,672.96 and 6,321.53

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Solution

The fourth proportional to 11,357.10, 15,672.96 and 6,321.53 is: 8,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.10 : 15,672.96 = 6,321.53 : x
  2. Step 2: Convert to fraction form
    11,357.10/15,672.96 = 6,321.53/x
  3. Step 3: Cross multiply
    11,357.10x = 15,672.96 × 6,321.53
  4. Step 4: Simplify right side
    11,357.10x = 99,077,086.83
  5. Step 5: Solve for x
    x = 99,077,086.83/11,357.10
  6. Step 6: Final answer
    x = 8,723.80

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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.