Home / 13,919.60-19,204.52-7,869.25

Finding the Fourth Proportional to 13,919.60, 19,204.52 and 7,869.25

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Solution

The fourth proportional to 13,919.60, 19,204.52 and 7,869.25 is: 10,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.60 : 19,204.52 = 7,869.25 : x
  2. Step 2: Convert to fraction form
    13,919.60/19,204.52 = 7,869.25/x
  3. Step 3: Cross multiply
    13,919.60x = 19,204.52 × 7,869.25
  4. Step 4: Simplify right side
    13,919.60x = 151,125,188.68
  5. Step 5: Solve for x
    x = 151,125,188.68/13,919.60
  6. Step 6: Final answer
    x = 10,857.01

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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.