Home / 7,968.72-10,995.54-4,431.84

Finding the Fourth Proportional to 7,968.72, 10,995.54 and 4,431.84

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Solution

The fourth proportional to 7,968.72, 10,995.54 and 4,431.84 is: 6,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.72 : 10,995.54 = 4,431.84 : x
  2. Step 2: Convert to fraction form
    7,968.72/10,995.54 = 4,431.84/x
  3. Step 3: Cross multiply
    7,968.72x = 10,995.54 × 4,431.84
  4. Step 4: Simplify right side
    7,968.72x = 48,730,473.99
  5. Step 5: Solve for x
    x = 48,730,473.99/7,968.72
  6. Step 6: Final answer
    x = 6,115.22

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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.