Home / 18,895.20-26,086.17-12,530.44

Finding the Fourth Proportional to 18,895.20, 26,086.17 and 12,530.44

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Solution

The fourth proportional to 18,895.20, 26,086.17 and 12,530.44 is: 17,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.20 : 26,086.17 = 12,530.44 : x
  2. Step 2: Convert to fraction form
    18,895.20/26,086.17 = 12,530.44/x
  3. Step 3: Cross multiply
    18,895.20x = 26,086.17 × 12,530.44
  4. Step 4: Simplify right side
    18,895.20x = 326,871,188.01
  5. Step 5: Solve for x
    x = 326,871,188.01/18,895.20
  6. Step 6: Final answer
    x = 17,299.17

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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.