Home / 13,972.05-19,281.04-7,684.43

Finding the Fourth Proportional to 13,972.05, 19,281.04 and 7,684.43

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Solution

The fourth proportional to 13,972.05, 19,281.04 and 7,684.43 is: 10,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.05 : 19,281.04 = 7,684.43 : x
  2. Step 2: Convert to fraction form
    13,972.05/19,281.04 = 7,684.43/x
  3. Step 3: Cross multiply
    13,972.05x = 19,281.04 × 7,684.43
  4. Step 4: Simplify right side
    13,972.05x = 148,163,667.38
  5. Step 5: Solve for x
    x = 148,163,667.38/13,972.05
  6. Step 6: Final answer
    x = 10,604.29

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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.