Home / 15,297.62-21,108.21-9,009.14

Finding the Fourth Proportional to 15,297.62, 21,108.21 and 9,009.14

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Solution

The fourth proportional to 15,297.62, 21,108.21 and 9,009.14 is: 12,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.62 : 21,108.21 = 9,009.14 : x
  2. Step 2: Convert to fraction form
    15,297.62/21,108.21 = 9,009.14/x
  3. Step 3: Cross multiply
    15,297.62x = 21,108.21 × 9,009.14
  4. Step 4: Simplify right side
    15,297.62x = 190,166,819.04
  5. Step 5: Solve for x
    x = 190,166,819.04/15,297.62
  6. Step 6: Final answer
    x = 12,431.14

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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.