Home / 7,236.54-9,977.67-6,115.50

Finding the Fourth Proportional to 7,236.54, 9,977.67 and 6,115.50

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Solution

The fourth proportional to 7,236.54, 9,977.67 and 6,115.50 is: 8,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.54 : 9,977.67 = 6,115.50 : x
  2. Step 2: Convert to fraction form
    7,236.54/9,977.67 = 6,115.50/x
  3. Step 3: Cross multiply
    7,236.54x = 9,977.67 × 6,115.50
  4. Step 4: Simplify right side
    7,236.54x = 61,018,440.89
  5. Step 5: Solve for x
    x = 61,018,440.89/7,236.54
  6. Step 6: Final answer
    x = 8,431.99

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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.