Home / 7,107.54-10,661.47-5,647.72

Finding the Fourth Proportional to 7,107.54, 10,661.47 and 5,647.72

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Solution

The fourth proportional to 7,107.54, 10,661.47 and 5,647.72 is: 8,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.54 : 10,661.47 = 5,647.72 : x
  2. Step 2: Convert to fraction form
    7,107.54/10,661.47 = 5,647.72/x
  3. Step 3: Cross multiply
    7,107.54x = 10,661.47 × 5,647.72
  4. Step 4: Simplify right side
    7,107.54x = 60,212,969.11
  5. Step 5: Solve for x
    x = 60,212,969.11/7,107.54
  6. Step 6: Final answer
    x = 8,471.70

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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.