Home / 7,135.74-9,847.38-4,153.32

Finding the Fourth Proportional to 7,135.74, 9,847.38 and 4,153.32

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Solution

The fourth proportional to 7,135.74, 9,847.38 and 4,153.32 is: 5,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.74 : 9,847.38 = 4,153.32 : x
  2. Step 2: Convert to fraction form
    7,135.74/9,847.38 = 4,153.32/x
  3. Step 3: Cross multiply
    7,135.74x = 9,847.38 × 4,153.32
  4. Step 4: Simplify right side
    7,135.74x = 40,899,320.30
  5. Step 5: Solve for x
    x = 40,899,320.30/7,135.74
  6. Step 6: Final answer
    x = 5,731.62

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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.