Home / 18,965.80-26,172.39-10,899.46

Finding the Fourth Proportional to 18,965.80, 26,172.39 and 10,899.46

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Solution

The fourth proportional to 18,965.80, 26,172.39 and 10,899.46 is: 15,041.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.80 : 26,172.39 = 10,899.46 : x
  2. Step 2: Convert to fraction form
    18,965.80/26,172.39 = 10,899.46/x
  3. Step 3: Cross multiply
    18,965.80x = 26,172.39 × 10,899.46
  4. Step 4: Simplify right side
    18,965.80x = 285,264,917.91
  5. Step 5: Solve for x
    x = 285,264,917.91/18,965.80
  6. Step 6: Final answer
    x = 15,041.02

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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.