Home / 8,153.64-11,247.05-5,390.98

Finding the Fourth Proportional to 8,153.64, 11,247.05 and 5,390.98

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Solution

The fourth proportional to 8,153.64, 11,247.05 and 5,390.98 is: 7,436.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.64 : 11,247.05 = 5,390.98 : x
  2. Step 2: Convert to fraction form
    8,153.64/11,247.05 = 5,390.98/x
  3. Step 3: Cross multiply
    8,153.64x = 11,247.05 × 5,390.98
  4. Step 4: Simplify right side
    8,153.64x = 60,632,608.28
  5. Step 5: Solve for x
    x = 60,632,608.28/8,153.64
  6. Step 6: Final answer
    x = 7,436.26

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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.