Home / 13,971.75-19,281.30-7,684.14

Finding the Fourth Proportional to 13,971.75, 19,281.30 and 7,684.14

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Solution

The fourth proportional to 13,971.75, 19,281.30 and 7,684.14 is: 10,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.75 : 19,281.30 = 7,684.14 : x
  2. Step 2: Convert to fraction form
    13,971.75/19,281.30 = 7,684.14/x
  3. Step 3: Cross multiply
    13,971.75x = 19,281.30 × 7,684.14
  4. Step 4: Simplify right side
    13,971.75x = 148,160,208.58
  5. Step 5: Solve for x
    x = 148,160,208.58/13,971.75
  6. Step 6: Final answer
    x = 10,604.27

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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.