Home / 13,904.85-19,188.75-7,617.22

Finding the Fourth Proportional to 13,904.85, 19,188.75 and 7,617.22

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Solution

The fourth proportional to 13,904.85, 19,188.75 and 7,617.22 is: 10,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.85 : 19,188.75 = 7,617.22 : x
  2. Step 2: Convert to fraction form
    13,904.85/19,188.75 = 7,617.22/x
  3. Step 3: Cross multiply
    13,904.85x = 19,188.75 × 7,617.22
  4. Step 4: Simplify right side
    13,904.85x = 146,164,930.28
  5. Step 5: Solve for x
    x = 146,164,930.28/13,904.85
  6. Step 6: Final answer
    x = 10,511.79

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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.