Home / 11,853.40-17,765.70-5,272.60

Finding the Fourth Proportional to 11,853.40, 17,765.70 and 5,272.60

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Solution

The fourth proportional to 11,853.40, 17,765.70 and 5,272.60 is: 7,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,853.40 : 17,765.70 = 5,272.60 : x
  2. Step 2: Convert to fraction form
    11,853.40/17,765.70 = 5,272.60/x
  3. Step 3: Cross multiply
    11,853.40x = 17,765.70 × 5,272.60
  4. Step 4: Simplify right side
    11,853.40x = 93,671,429.82
  5. Step 5: Solve for x
    x = 93,671,429.82/11,853.40
  6. Step 6: Final answer
    x = 7,902.49

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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.