Home / 13,816.82-19,070.73-7,850.40

Finding the Fourth Proportional to 13,816.82, 19,070.73 and 7,850.40

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Solution

The fourth proportional to 13,816.82, 19,070.73 and 7,850.40 is: 10,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.82 : 19,070.73 = 7,850.40 : x
  2. Step 2: Convert to fraction form
    13,816.82/19,070.73 = 7,850.40/x
  3. Step 3: Cross multiply
    13,816.82x = 19,070.73 × 7,850.40
  4. Step 4: Simplify right side
    13,816.82x = 149,712,858.79
  5. Step 5: Solve for x
    x = 149,712,858.79/13,816.82
  6. Step 6: Final answer
    x = 10,835.55

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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.