Home / 13,673.28-18,870.52-8,371.60

Finding the Fourth Proportional to 13,673.28, 18,870.52 and 8,371.60

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Solution

The fourth proportional to 13,673.28, 18,870.52 and 8,371.60 is: 11,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.28 : 18,870.52 = 8,371.60 : x
  2. Step 2: Convert to fraction form
    13,673.28/18,870.52 = 8,371.60/x
  3. Step 3: Cross multiply
    13,673.28x = 18,870.52 × 8,371.60
  4. Step 4: Simplify right side
    13,673.28x = 157,976,445.23
  5. Step 5: Solve for x
    x = 157,976,445.23/13,673.28
  6. Step 6: Final answer
    x = 11,553.66

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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.