Home / 19,016.56-28,511.88-9,150.76

Finding the Fourth Proportional to 19,016.56, 28,511.88 and 9,150.76

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Solution

The fourth proportional to 19,016.56, 28,511.88 and 9,150.76 is: 13,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,016.56 : 28,511.88 = 9,150.76 : x
  2. Step 2: Convert to fraction form
    19,016.56/28,511.88 = 9,150.76/x
  3. Step 3: Cross multiply
    19,016.56x = 28,511.88 × 9,150.76
  4. Step 4: Simplify right side
    19,016.56x = 260,905,371.03
  5. Step 5: Solve for x
    x = 260,905,371.03/19,016.56
  6. Step 6: Final answer
    x = 13,719.90

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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.