Home / 15,102.24-20,842.41-8,389.23

Finding the Fourth Proportional to 15,102.24, 20,842.41 and 8,389.23

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Solution

The fourth proportional to 15,102.24, 20,842.41 and 8,389.23 is: 11,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.24 : 20,842.41 = 8,389.23 : x
  2. Step 2: Convert to fraction form
    15,102.24/20,842.41 = 8,389.23/x
  3. Step 3: Cross multiply
    15,102.24x = 20,842.41 × 8,389.23
  4. Step 4: Simplify right side
    15,102.24x = 174,851,771.24
  5. Step 5: Solve for x
    x = 174,851,771.24/15,102.24
  6. Step 6: Final answer
    x = 11,577.87

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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.