Home / 13,851.97-19,115.70-7,564.35

Finding the Fourth Proportional to 13,851.97, 19,115.70 and 7,564.35

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Solution

The fourth proportional to 13,851.97, 19,115.70 and 7,564.35 is: 10,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.97 : 19,115.70 = 7,564.35 : x
  2. Step 2: Convert to fraction form
    13,851.97/19,115.70 = 7,564.35/x
  3. Step 3: Cross multiply
    13,851.97x = 19,115.70 × 7,564.35
  4. Step 4: Simplify right side
    13,851.97x = 144,597,845.30
  5. Step 5: Solve for x
    x = 144,597,845.30/13,851.97
  6. Step 6: Final answer
    x = 10,438.79

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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.