Home / 15,900.48-21,945.30-8,829.18

Finding the Fourth Proportional to 15,900.48, 21,945.30 and 8,829.18

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Solution

The fourth proportional to 15,900.48, 21,945.30 and 8,829.18 is: 12,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.48 : 21,945.30 = 8,829.18 : x
  2. Step 2: Convert to fraction form
    15,900.48/21,945.30 = 8,829.18/x
  3. Step 3: Cross multiply
    15,900.48x = 21,945.30 × 8,829.18
  4. Step 4: Simplify right side
    15,900.48x = 193,759,003.85
  5. Step 5: Solve for x
    x = 193,759,003.85/15,900.48
  6. Step 6: Final answer
    x = 12,185.73

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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.