Home / 13,807.73-19,055.43-8,145.80

Finding the Fourth Proportional to 13,807.73, 19,055.43 and 8,145.80

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Solution

The fourth proportional to 13,807.73, 19,055.43 and 8,145.80 is: 11,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.73 : 19,055.43 = 8,145.80 : x
  2. Step 2: Convert to fraction form
    13,807.73/19,055.43 = 8,145.80/x
  3. Step 3: Cross multiply
    13,807.73x = 19,055.43 × 8,145.80
  4. Step 4: Simplify right side
    13,807.73x = 155,221,626.42
  5. Step 5: Solve for x
    x = 155,221,626.42/13,807.73
  6. Step 6: Final answer
    x = 11,241.65

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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.