Home / 13,972.09-19,281.09-7,684.46

Finding the Fourth Proportional to 13,972.09, 19,281.09 and 7,684.46

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Solution

The fourth proportional to 13,972.09, 19,281.09 and 7,684.46 is: 10,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.09 : 19,281.09 = 7,684.46 : x
  2. Step 2: Convert to fraction form
    13,972.09/19,281.09 = 7,684.46/x
  3. Step 3: Cross multiply
    13,972.09x = 19,281.09 × 7,684.46
  4. Step 4: Simplify right side
    13,972.09x = 148,164,764.86
  5. Step 5: Solve for x
    x = 148,164,764.86/13,972.09
  6. Step 6: Final answer
    x = 10,604.34

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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.