Home / 15,759.10-21,747.26-8,589.07

Finding the Fourth Proportional to 15,759.10, 21,747.26 and 8,589.07

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Solution

The fourth proportional to 15,759.10, 21,747.26 and 8,589.07 is: 11,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,759.10 : 21,747.26 = 8,589.07 : x
  2. Step 2: Convert to fraction form
    15,759.10/21,747.26 = 8,589.07/x
  3. Step 3: Cross multiply
    15,759.10x = 21,747.26 × 8,589.07
  4. Step 4: Simplify right side
    15,759.10x = 186,788,738.45
  5. Step 5: Solve for x
    x = 186,788,738.45/15,759.10
  6. Step 6: Final answer
    x = 11,852.75

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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.