Home / 7,439.21-11,153.34-3,546.35

Finding the Fourth Proportional to 7,439.21, 11,153.34 and 3,546.35

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Solution

The fourth proportional to 7,439.21, 11,153.34 and 3,546.35 is: 5,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.21 : 11,153.34 = 3,546.35 : x
  2. Step 2: Convert to fraction form
    7,439.21/11,153.34 = 3,546.35/x
  3. Step 3: Cross multiply
    7,439.21x = 11,153.34 × 3,546.35
  4. Step 4: Simplify right side
    7,439.21x = 39,553,573.81
  5. Step 5: Solve for x
    x = 39,553,573.81/7,439.21
  6. Step 6: Final answer
    x = 5,316.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.