Home / 18,615.12-25,690.44-10,233.36

Finding the Fourth Proportional to 18,615.12, 25,690.44 and 10,233.36

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Solution

The fourth proportional to 18,615.12, 25,690.44 and 10,233.36 is: 14,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.12 : 25,690.44 = 10,233.36 : x
  2. Step 2: Convert to fraction form
    18,615.12/25,690.44 = 10,233.36/x
  3. Step 3: Cross multiply
    18,615.12x = 25,690.44 × 10,233.36
  4. Step 4: Simplify right side
    18,615.12x = 262,899,521.08
  5. Step 5: Solve for x
    x = 262,899,521.08/18,615.12
  6. Step 6: Final answer
    x = 14,122.90

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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.