Home / 15,021.84-20,734.30-8,735.42

Finding the Fourth Proportional to 15,021.84, 20,734.30 and 8,735.42

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Solution

The fourth proportional to 15,021.84, 20,734.30 and 8,735.42 is: 12,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.84 : 20,734.30 = 8,735.42 : x
  2. Step 2: Convert to fraction form
    15,021.84/20,734.30 = 8,735.42/x
  3. Step 3: Cross multiply
    15,021.84x = 20,734.30 × 8,735.42
  4. Step 4: Simplify right side
    15,021.84x = 181,122,818.91
  5. Step 5: Solve for x
    x = 181,122,818.91/15,021.84
  6. Step 6: Final answer
    x = 12,057.30

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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.