Home / 15,215.26-20,994.98-8,500.06

Finding the Fourth Proportional to 15,215.26, 20,994.98 and 8,500.06

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Solution

The fourth proportional to 15,215.26, 20,994.98 and 8,500.06 is: 11,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215.26 : 20,994.98 = 8,500.06 : x
  2. Step 2: Convert to fraction form
    15,215.26/20,994.98 = 8,500.06/x
  3. Step 3: Cross multiply
    15,215.26x = 20,994.98 × 8,500.06
  4. Step 4: Simplify right side
    15,215.26x = 178,458,442.22
  5. Step 5: Solve for x
    x = 178,458,442.22/15,215.26
  6. Step 6: Final answer
    x = 11,728.91

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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.