Home / 10,947.95-15,107.27-6,471.89

Finding the Fourth Proportional to 10,947.95, 15,107.27 and 6,471.89

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Solution

The fourth proportional to 10,947.95, 15,107.27 and 6,471.89 is: 8,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.95 : 15,107.27 = 6,471.89 : x
  2. Step 2: Convert to fraction form
    10,947.95/15,107.27 = 6,471.89/x
  3. Step 3: Cross multiply
    10,947.95x = 15,107.27 × 6,471.89
  4. Step 4: Simplify right side
    10,947.95x = 97,772,481.74
  5. Step 5: Solve for x
    x = 97,772,481.74/10,947.95
  6. Step 6: Final answer
    x = 8,930.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.