Home / 15,919.26-21,968.14-8,845.50

Finding the Fourth Proportional to 15,919.26, 21,968.14 and 8,845.50

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Solution

The fourth proportional to 15,919.26, 21,968.14 and 8,845.50 is: 12,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.26 : 21,968.14 = 8,845.50 : x
  2. Step 2: Convert to fraction form
    15,919.26/21,968.14 = 8,845.50/x
  3. Step 3: Cross multiply
    15,919.26x = 21,968.14 × 8,845.50
  4. Step 4: Simplify right side
    15,919.26x = 194,319,182.37
  5. Step 5: Solve for x
    x = 194,319,182.37/15,919.26
  6. Step 6: Final answer
    x = 12,206.55

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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.