Home / 13,961.20-19,283.48-10,440.04

Finding the Fourth Proportional to 13,961.20, 19,283.48 and 10,440.04

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Solution

The fourth proportional to 13,961.20, 19,283.48 and 10,440.04 is: 14,419.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.20 : 19,283.48 = 10,440.04 : x
  2. Step 2: Convert to fraction form
    13,961.20/19,283.48 = 10,440.04/x
  3. Step 3: Cross multiply
    13,961.20x = 19,283.48 × 10,440.04
  4. Step 4: Simplify right side
    13,961.20x = 201,320,302.54
  5. Step 5: Solve for x
    x = 201,320,302.54/13,961.20
  6. Step 6: Final answer
    x = 14,419.99

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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.