Home / 13,996.84-21,002.58-13,190.08

Finding the Fourth Proportional to 13,996.84, 21,002.58 and 13,190.08

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Solution

The fourth proportional to 13,996.84, 21,002.58 and 13,190.08 is: 19,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.84 : 21,002.58 = 13,190.08 : x
  2. Step 2: Convert to fraction form
    13,996.84/21,002.58 = 13,190.08/x
  3. Step 3: Cross multiply
    13,996.84x = 21,002.58 × 13,190.08
  4. Step 4: Simplify right side
    13,996.84x = 277,025,710.41
  5. Step 5: Solve for x
    x = 277,025,710.41/13,996.84
  6. Step 6: Final answer
    x = 19,792.02

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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.