Home / 18,583.77-25,650.21-11,415.42

Finding the Fourth Proportional to 18,583.77, 25,650.21 and 11,415.42

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Solution

The fourth proportional to 18,583.77, 25,650.21 and 11,415.42 is: 15,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.77 : 25,650.21 = 11,415.42 : x
  2. Step 2: Convert to fraction form
    18,583.77/25,650.21 = 11,415.42/x
  3. Step 3: Cross multiply
    18,583.77x = 25,650.21 × 11,415.42
  4. Step 4: Simplify right side
    18,583.77x = 292,807,920.24
  5. Step 5: Solve for x
    x = 292,807,920.24/18,583.77
  6. Step 6: Final answer
    x = 15,756.11

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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.