Home / 10,943.88-16,420.95-5,394.20

Finding the Fourth Proportional to 10,943.88, 16,420.95 and 5,394.20

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Solution

The fourth proportional to 10,943.88, 16,420.95 and 5,394.20 is: 8,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.88 : 16,420.95 = 5,394.20 : x
  2. Step 2: Convert to fraction form
    10,943.88/16,420.95 = 5,394.20/x
  3. Step 3: Cross multiply
    10,943.88x = 16,420.95 × 5,394.20
  4. Step 4: Simplify right side
    10,943.88x = 88,577,888.49
  5. Step 5: Solve for x
    x = 88,577,888.49/10,943.88
  6. Step 6: Final answer
    x = 8,093.83

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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.