Home / 13,972.04-19,281.48-8,383.04

Finding the Fourth Proportional to 13,972.04, 19,281.48 and 8,383.04

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Solution

The fourth proportional to 13,972.04, 19,281.48 and 8,383.04 is: 11,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.04 : 19,281.48 = 8,383.04 : x
  2. Step 2: Convert to fraction form
    13,972.04/19,281.48 = 8,383.04/x
  3. Step 3: Cross multiply
    13,972.04x = 19,281.48 × 8,383.04
  4. Step 4: Simplify right side
    13,972.04x = 161,637,418.10
  5. Step 5: Solve for x
    x = 161,637,418.10/13,972.04
  6. Step 6: Final answer
    x = 11,568.63

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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.