Home / 7,137.48-9,847.34-4,152.68

Finding the Fourth Proportional to 7,137.48, 9,847.34 and 4,152.68

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Solution

The fourth proportional to 7,137.48, 9,847.34 and 4,152.68 is: 5,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.48 : 9,847.34 = 4,152.68 : x
  2. Step 2: Convert to fraction form
    7,137.48/9,847.34 = 4,152.68/x
  3. Step 3: Cross multiply
    7,137.48x = 9,847.34 × 4,152.68
  4. Step 4: Simplify right side
    7,137.48x = 40,892,781.87
  5. Step 5: Solve for x
    x = 40,892,781.87/7,137.48
  6. Step 6: Final answer
    x = 5,729.30

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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.