Home / 15,566.74-21,481.23-8,851.42

Finding the Fourth Proportional to 15,566.74, 21,481.23 and 8,851.42

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Solution

The fourth proportional to 15,566.74, 21,481.23 and 8,851.42 is: 12,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.74 : 21,481.23 = 8,851.42 : x
  2. Step 2: Convert to fraction form
    15,566.74/21,481.23 = 8,851.42/x
  3. Step 3: Cross multiply
    15,566.74x = 21,481.23 × 8,851.42
  4. Step 4: Simplify right side
    15,566.74x = 190,139,388.85
  5. Step 5: Solve for x
    x = 190,139,388.85/15,566.74
  6. Step 6: Final answer
    x = 12,214.46

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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.