Home / 15,924.96-21,977.19-8,851.50

Finding the Fourth Proportional to 15,924.96, 21,977.19 and 8,851.50

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Solution

The fourth proportional to 15,924.96, 21,977.19 and 8,851.50 is: 12,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.96 : 21,977.19 = 8,851.50 : x
  2. Step 2: Convert to fraction form
    15,924.96/21,977.19 = 8,851.50/x
  3. Step 3: Cross multiply
    15,924.96x = 21,977.19 × 8,851.50
  4. Step 4: Simplify right side
    15,924.96x = 194,531,097.29
  5. Step 5: Solve for x
    x = 194,531,097.29/15,924.96
  6. Step 6: Final answer
    x = 12,215.48

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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.