Home / 13,972.04-19,281.78-7,684.58

Finding the Fourth Proportional to 13,972.04, 19,281.78 and 7,684.58

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Solution

The fourth proportional to 13,972.04, 19,281.78 and 7,684.58 is: 10,604.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.04 : 19,281.78 = 7,684.58 : x
  2. Step 2: Convert to fraction form
    13,972.04/19,281.78 = 7,684.58/x
  3. Step 3: Cross multiply
    13,972.04x = 19,281.78 × 7,684.58
  4. Step 4: Simplify right side
    13,972.04x = 148,172,380.95
  5. Step 5: Solve for x
    x = 148,172,380.95/13,972.04
  6. Step 6: Final answer
    x = 10,604.92

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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.