Home / 13,673.49-18,871.22-7,706.31

Finding the Fourth Proportional to 13,673.49, 18,871.22 and 7,706.31

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Solution

The fourth proportional to 13,673.49, 18,871.22 and 7,706.31 is: 10,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.49 : 18,871.22 = 7,706.31 : x
  2. Step 2: Convert to fraction form
    13,673.49/18,871.22 = 7,706.31/x
  3. Step 3: Cross multiply
    13,673.49x = 18,871.22 × 7,706.31
  4. Step 4: Simplify right side
    13,673.49x = 145,427,432.87
  5. Step 5: Solve for x
    x = 145,427,432.87/13,673.49
  6. Step 6: Final answer
    x = 10,635.72

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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.