Home / 15,383.99-21,231.41-9,010.17

Finding the Fourth Proportional to 15,383.99, 21,231.41 and 9,010.17

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Solution

The fourth proportional to 15,383.99, 21,231.41 and 9,010.17 is: 12,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.99 : 21,231.41 = 9,010.17 : x
  2. Step 2: Convert to fraction form
    15,383.99/21,231.41 = 9,010.17/x
  3. Step 3: Cross multiply
    15,383.99x = 21,231.41 × 9,010.17
  4. Step 4: Simplify right side
    15,383.99x = 191,298,568.39
  5. Step 5: Solve for x
    x = 191,298,568.39/15,383.99
  6. Step 6: Final answer
    x = 12,434.91

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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.