Home / 11,756.21-16,223.57-6,720.54

Finding the Fourth Proportional to 11,756.21, 16,223.57 and 6,720.54

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Solution

The fourth proportional to 11,756.21, 16,223.57 and 6,720.54 is: 9,274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.21 : 16,223.57 = 6,720.54 : x
  2. Step 2: Convert to fraction form
    11,756.21/16,223.57 = 6,720.54/x
  3. Step 3: Cross multiply
    11,756.21x = 16,223.57 × 6,720.54
  4. Step 4: Simplify right side
    11,756.21x = 109,031,151.13
  5. Step 5: Solve for x
    x = 109,031,151.13/11,756.21
  6. Step 6: Final answer
    x = 9,274.35

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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.