Home / 8,378.83-11,561.91-5,021.56

Finding the Fourth Proportional to 8,378.83, 11,561.91 and 5,021.56

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Solution

The fourth proportional to 8,378.83, 11,561.91 and 5,021.56 is: 6,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.83 : 11,561.91 = 5,021.56 : x
  2. Step 2: Convert to fraction form
    8,378.83/11,561.91 = 5,021.56/x
  3. Step 3: Cross multiply
    8,378.83x = 11,561.91 × 5,021.56
  4. Step 4: Simplify right side
    8,378.83x = 58,058,824.78
  5. Step 5: Solve for x
    x = 58,058,824.78/8,378.83
  6. Step 6: Final answer
    x = 6,929.23

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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.