Home / 11,321.52-15,622.95-6,285.75

Finding the Fourth Proportional to 11,321.52, 15,622.95 and 6,285.75

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Solution

The fourth proportional to 11,321.52, 15,622.95 and 6,285.75 is: 8,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.52 : 15,622.95 = 6,285.75 : x
  2. Step 2: Convert to fraction form
    11,321.52/15,622.95 = 6,285.75/x
  3. Step 3: Cross multiply
    11,321.52x = 15,622.95 × 6,285.75
  4. Step 4: Simplify right side
    11,321.52x = 98,201,957.96
  5. Step 5: Solve for x
    x = 98,201,957.96/11,321.52
  6. Step 6: Final answer
    x = 8,673.92

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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.