Home / 18,418.77-25,416.73-10,865.41

Finding the Fourth Proportional to 18,418.77, 25,416.73 and 10,865.41

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Solution

The fourth proportional to 18,418.77, 25,416.73 and 10,865.41 is: 14,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.77 : 25,416.73 = 10,865.41 : x
  2. Step 2: Convert to fraction form
    18,418.77/25,416.73 = 10,865.41/x
  3. Step 3: Cross multiply
    18,418.77x = 25,416.73 × 10,865.41
  4. Step 4: Simplify right side
    18,418.77x = 276,163,192.31
  5. Step 5: Solve for x
    x = 276,163,192.31/18,418.77
  6. Step 6: Final answer
    x = 14,993.57

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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.