Home / 13,902.88-19,185.96-7,615.48

Finding the Fourth Proportional to 13,902.88, 19,185.96 and 7,615.48

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Solution

The fourth proportional to 13,902.88, 19,185.96 and 7,615.48 is: 10,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.88 : 19,185.96 = 7,615.48 : x
  2. Step 2: Convert to fraction form
    13,902.88/19,185.96 = 7,615.48/x
  3. Step 3: Cross multiply
    13,902.88x = 19,185.96 × 7,615.48
  4. Step 4: Simplify right side
    13,902.88x = 146,110,294.66
  5. Step 5: Solve for x
    x = 146,110,294.66/13,902.88
  6. Step 6: Final answer
    x = 10,509.35

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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.