Home / 15,011.75-20,714.60-8,297.06

Finding the Fourth Proportional to 15,011.75, 20,714.60 and 8,297.06

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Solution

The fourth proportional to 15,011.75, 20,714.60 and 8,297.06 is: 11,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.75 : 20,714.60 = 8,297.06 : x
  2. Step 2: Convert to fraction form
    15,011.75/20,714.60 = 8,297.06/x
  3. Step 3: Cross multiply
    15,011.75x = 20,714.60 × 8,297.06
  4. Step 4: Simplify right side
    15,011.75x = 171,870,196.25
  5. Step 5: Solve for x
    x = 171,870,196.25/15,011.75
  6. Step 6: Final answer
    x = 11,449.04

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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.