Home / 18,965.25-26,172.05-10,581.75

Finding the Fourth Proportional to 18,965.25, 26,172.05 and 10,581.75

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Solution

The fourth proportional to 18,965.25, 26,172.05 and 10,581.75 is: 14,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.25 : 26,172.05 = 10,581.75 : x
  2. Step 2: Convert to fraction form
    18,965.25/26,172.05 = 10,581.75/x
  3. Step 3: Cross multiply
    18,965.25x = 26,172.05 × 10,581.75
  4. Step 4: Simplify right side
    18,965.25x = 276,946,037.18
  5. Step 5: Solve for x
    x = 276,946,037.18/18,965.25
  6. Step 6: Final answer
    x = 14,602.82

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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.