Home / 15,924.72-21,975.12-8,851.02

Finding the Fourth Proportional to 15,924.72, 21,975.12 and 8,851.02

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Solution

The fourth proportional to 15,924.72, 21,975.12 and 8,851.02 is: 12,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.72 : 21,975.12 = 8,851.02 : x
  2. Step 2: Convert to fraction form
    15,924.72/21,975.12 = 8,851.02/x
  3. Step 3: Cross multiply
    15,924.72x = 21,975.12 × 8,851.02
  4. Step 4: Simplify right side
    15,924.72x = 194,502,226.62
  5. Step 5: Solve for x
    x = 194,502,226.62/15,924.72
  6. Step 6: Final answer
    x = 12,213.86

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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.