Home / 13,974.48-19,289.52-8,672.40

Finding the Fourth Proportional to 13,974.48, 19,289.52 and 8,672.40

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Solution

The fourth proportional to 13,974.48, 19,289.52 and 8,672.40 is: 11,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.48 : 19,289.52 = 8,672.40 : x
  2. Step 2: Convert to fraction form
    13,974.48/19,289.52 = 8,672.40/x
  3. Step 3: Cross multiply
    13,974.48x = 19,289.52 × 8,672.40
  4. Step 4: Simplify right side
    13,974.48x = 167,286,433.25
  5. Step 5: Solve for x
    x = 167,286,433.25/13,974.48
  6. Step 6: Final answer
    x = 11,970.85

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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.