Home / 15,114.42-20,851.92-8,739.84

Finding the Fourth Proportional to 15,114.42, 20,851.92 and 8,739.84

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Solution

The fourth proportional to 15,114.42, 20,851.92 and 8,739.84 is: 12,057.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.42 : 20,851.92 = 8,739.84 : x
  2. Step 2: Convert to fraction form
    15,114.42/20,851.92 = 8,739.84/x
  3. Step 3: Cross multiply
    15,114.42x = 20,851.92 × 8,739.84
  4. Step 4: Simplify right side
    15,114.42x = 182,242,444.49
  5. Step 5: Solve for x
    x = 182,242,444.49/15,114.42
  6. Step 6: Final answer
    x = 12,057.52

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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.