Home / 7,142.44-10,695.20-4,928.10

Finding the Fourth Proportional to 7,142.44, 10,695.20 and 4,928.10

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Solution

The fourth proportional to 7,142.44, 10,695.20 and 4,928.10 is: 7,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.44 : 10,695.20 = 4,928.10 : x
  2. Step 2: Convert to fraction form
    7,142.44/10,695.20 = 4,928.10/x
  3. Step 3: Cross multiply
    7,142.44x = 10,695.20 × 4,928.10
  4. Step 4: Simplify right side
    7,142.44x = 52,707,015.12
  5. Step 5: Solve for x
    x = 52,707,015.12/7,142.44
  6. Step 6: Final answer
    x = 7,379.41

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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.