Home / 9,558.87-13,190.78-5,310.20

Finding the Fourth Proportional to 9,558.87, 13,190.78 and 5,310.20

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Solution

The fourth proportional to 9,558.87, 13,190.78 and 5,310.20 is: 7,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,558.87 : 13,190.78 = 5,310.20 : x
  2. Step 2: Convert to fraction form
    9,558.87/13,190.78 = 5,310.20/x
  3. Step 3: Cross multiply
    9,558.87x = 13,190.78 × 5,310.20
  4. Step 4: Simplify right side
    9,558.87x = 70,045,679.96
  5. Step 5: Solve for x
    x = 70,045,679.96/9,558.87
  6. Step 6: Final answer
    x = 7,327.82

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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.