Home / 11,867.40-17,802.70-4,078.60

Finding the Fourth Proportional to 11,867.40, 17,802.70 and 4,078.60

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Solution

The fourth proportional to 11,867.40, 17,802.70 and 4,078.60 is: 6,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.40 : 17,802.70 = 4,078.60 : x
  2. Step 2: Convert to fraction form
    11,867.40/17,802.70 = 4,078.60/x
  3. Step 3: Cross multiply
    11,867.40x = 17,802.70 × 4,078.60
  4. Step 4: Simplify right side
    11,867.40x = 72,610,092.22
  5. Step 5: Solve for x
    x = 72,610,092.22/11,867.40
  6. Step 6: Final answer
    x = 6,118.45

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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.