Home / 13,867.88-19,137.74-7,580.25

Finding the Fourth Proportional to 13,867.88, 19,137.74 and 7,580.25

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Solution

The fourth proportional to 13,867.88, 19,137.74 and 7,580.25 is: 10,460.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.88 : 19,137.74 = 7,580.25 : x
  2. Step 2: Convert to fraction form
    13,867.88/19,137.74 = 7,580.25/x
  3. Step 3: Cross multiply
    13,867.88x = 19,137.74 × 7,580.25
  4. Step 4: Simplify right side
    13,867.88x = 145,068,815.73
  5. Step 5: Solve for x
    x = 145,068,815.73/13,867.88
  6. Step 6: Final answer
    x = 10,460.78

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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.