Home / 18,723.90-28,094.02-9,948.54

Finding the Fourth Proportional to 18,723.90, 28,094.02 and 9,948.54

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Solution

The fourth proportional to 18,723.90, 28,094.02 and 9,948.54 is: 14,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.90 : 28,094.02 = 9,948.54 : x
  2. Step 2: Convert to fraction form
    18,723.90/28,094.02 = 9,948.54/x
  3. Step 3: Cross multiply
    18,723.90x = 28,094.02 × 9,948.54
  4. Step 4: Simplify right side
    18,723.90x = 279,494,481.73
  5. Step 5: Solve for x
    x = 279,494,481.73/18,723.90
  6. Step 6: Final answer
    x = 14,927.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.