Home / 13,650.44-18,838.70-7,681.73

Finding the Fourth Proportional to 13,650.44, 18,838.70 and 7,681.73

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Solution

The fourth proportional to 13,650.44, 18,838.70 and 7,681.73 is: 10,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.44 : 18,838.70 = 7,681.73 : x
  2. Step 2: Convert to fraction form
    13,650.44/18,838.70 = 7,681.73/x
  3. Step 3: Cross multiply
    13,650.44x = 18,838.70 × 7,681.73
  4. Step 4: Simplify right side
    13,650.44x = 144,713,806.95
  5. Step 5: Solve for x
    x = 144,713,806.95/13,650.44
  6. Step 6: Final answer
    x = 10,601.40

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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.