Home / 17,490.36-26,220.06-11,954.28

Finding the Fourth Proportional to 17,490.36, 26,220.06 and 11,954.28

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Solution

The fourth proportional to 17,490.36, 26,220.06 and 11,954.28 is: 17,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,490.36 : 26,220.06 = 11,954.28 : x
  2. Step 2: Convert to fraction form
    17,490.36/26,220.06 = 11,954.28/x
  3. Step 3: Cross multiply
    17,490.36x = 26,220.06 × 11,954.28
  4. Step 4: Simplify right side
    17,490.36x = 313,441,938.86
  5. Step 5: Solve for x
    x = 313,441,938.86/17,490.36
  6. Step 6: Final answer
    x = 17,920.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.