Home / 13,669.08-18,862.38-8,079

Finding the Fourth Proportional to 13,669.08, 18,862.38 and 8,079

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Solution

The fourth proportional to 13,669.08, 18,862.38 and 8,079 is: 11,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.08 : 18,862.38 = 8,079 : x
  2. Step 2: Convert to fraction form
    13,669.08/18,862.38 = 8,079/x
  3. Step 3: Cross multiply
    13,669.08x = 18,862.38 × 8,079
  4. Step 4: Simplify right side
    13,669.08x = 152,389,168.02
  5. Step 5: Solve for x
    x = 152,389,168.02/13,669.08
  6. Step 6: Final answer
    x = 11,148.46

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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.