Home / 11,321.31-15,622.53-6,285.06

Finding the Fourth Proportional to 11,321.31, 15,622.53 and 6,285.06

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Solution

The fourth proportional to 11,321.31, 15,622.53 and 6,285.06 is: 8,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.31 : 15,622.53 = 6,285.06 : x
  2. Step 2: Convert to fraction form
    11,321.31/15,622.53 = 6,285.06/x
  3. Step 3: Cross multiply
    11,321.31x = 15,622.53 × 6,285.06
  4. Step 4: Simplify right side
    11,321.31x = 98,188,538.40
  5. Step 5: Solve for x
    x = 98,188,538.40/11,321.31
  6. Step 6: Final answer
    x = 8,672.90

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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.