Home / 18,895.77-28,304.78-11,085.75

Finding the Fourth Proportional to 18,895.77, 28,304.78 and 11,085.75

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Solution

The fourth proportional to 18,895.77, 28,304.78 and 11,085.75 is: 16,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.77 : 28,304.78 = 11,085.75 : x
  2. Step 2: Convert to fraction form
    18,895.77/28,304.78 = 11,085.75/x
  3. Step 3: Cross multiply
    18,895.77x = 28,304.78 × 11,085.75
  4. Step 4: Simplify right side
    18,895.77x = 313,779,659.46
  5. Step 5: Solve for x
    x = 313,779,659.46/18,895.77
  6. Step 6: Final answer
    x = 16,605.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.