Home / 10,513.13-15,771.22-3,490.84

Finding the Fourth Proportional to 10,513.13, 15,771.22 and 3,490.84

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Solution

The fourth proportional to 10,513.13, 15,771.22 and 3,490.84 is: 5,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.13 : 15,771.22 = 3,490.84 : x
  2. Step 2: Convert to fraction form
    10,513.13/15,771.22 = 3,490.84/x
  3. Step 3: Cross multiply
    10,513.13x = 15,771.22 × 3,490.84
  4. Step 4: Simplify right side
    10,513.13x = 55,054,757.47
  5. Step 5: Solve for x
    x = 55,054,757.47/10,513.13
  6. Step 6: Final answer
    x = 5,236.76

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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.