Home / 13,675.41-18,871.78-7,706.95

Finding the Fourth Proportional to 13,675.41, 18,871.78 and 7,706.95

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Solution

The fourth proportional to 13,675.41, 18,871.78 and 7,706.95 is: 10,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.41 : 18,871.78 = 7,706.95 : x
  2. Step 2: Convert to fraction form
    13,675.41/18,871.78 = 7,706.95/x
  3. Step 3: Cross multiply
    13,675.41x = 18,871.78 × 7,706.95
  4. Step 4: Simplify right side
    13,675.41x = 145,443,864.87
  5. Step 5: Solve for x
    x = 145,443,864.87/13,675.41
  6. Step 6: Final answer
    x = 10,635.43

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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.