Home / 9,429.74-13,015.38-5,450.28

Finding the Fourth Proportional to 9,429.74, 13,015.38 and 5,450.28

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Solution

The fourth proportional to 9,429.74, 13,015.38 and 5,450.28 is: 7,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.74 : 13,015.38 = 5,450.28 : x
  2. Step 2: Convert to fraction form
    9,429.74/13,015.38 = 5,450.28/x
  3. Step 3: Cross multiply
    9,429.74x = 13,015.38 × 5,450.28
  4. Step 4: Simplify right side
    9,429.74x = 70,937,372.98
  5. Step 5: Solve for x
    x = 70,937,372.98/9,429.74
  6. Step 6: Final answer
    x = 7,522.73

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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.