Home / 15,108.39-20,849.27-8,393.63

Finding the Fourth Proportional to 15,108.39, 20,849.27 and 8,393.63

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Solution

The fourth proportional to 15,108.39, 20,849.27 and 8,393.63 is: 11,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.39 : 20,849.27 = 8,393.63 : x
  2. Step 2: Convert to fraction form
    15,108.39/20,849.27 = 8,393.63/x
  3. Step 3: Cross multiply
    15,108.39x = 20,849.27 × 8,393.63
  4. Step 4: Simplify right side
    15,108.39x = 175,000,911.94
  5. Step 5: Solve for x
    x = 175,000,911.94/15,108.39
  6. Step 6: Final answer
    x = 11,583.03

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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.