Home / 15,420.88-23,131.32-8,851.24

Finding the Fourth Proportional to 15,420.88, 23,131.32 and 8,851.24

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Solution

The fourth proportional to 15,420.88, 23,131.32 and 8,851.24 is: 13,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.88 : 23,131.32 = 8,851.24 : x
  2. Step 2: Convert to fraction form
    15,420.88/23,131.32 = 8,851.24/x
  3. Step 3: Cross multiply
    15,420.88x = 23,131.32 × 8,851.24
  4. Step 4: Simplify right side
    15,420.88x = 204,740,864.84
  5. Step 5: Solve for x
    x = 204,740,864.84/15,420.88
  6. Step 6: Final answer
    x = 13,276.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.