Home / 9,199.37-12,695.63-5,220.56

Finding the Fourth Proportional to 9,199.37, 12,695.63 and 5,220.56

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Solution

The fourth proportional to 9,199.37, 12,695.63 and 5,220.56 is: 7,204.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.37 : 12,695.63 = 5,220.56 : x
  2. Step 2: Convert to fraction form
    9,199.37/12,695.63 = 5,220.56/x
  3. Step 3: Cross multiply
    9,199.37x = 12,695.63 × 5,220.56
  4. Step 4: Simplify right side
    9,199.37x = 66,278,208.57
  5. Step 5: Solve for x
    x = 66,278,208.57/9,199.37
  6. Step 6: Final answer
    x = 7,204.65

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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.