Home / 9,740.21-13,441.38-5,491.28

Finding the Fourth Proportional to 9,740.21, 13,441.38 and 5,491.28

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Solution

The fourth proportional to 9,740.21, 13,441.38 and 5,491.28 is: 7,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.21 : 13,441.38 = 5,491.28 : x
  2. Step 2: Convert to fraction form
    9,740.21/13,441.38 = 5,491.28/x
  3. Step 3: Cross multiply
    9,740.21x = 13,441.38 × 5,491.28
  4. Step 4: Simplify right side
    9,740.21x = 73,810,313.96
  5. Step 5: Solve for x
    x = 73,810,313.96/9,740.21
  6. Step 6: Final answer
    x = 7,577.90

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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.