Home / 13,118.60-19,678.04-10,502.73

Finding the Fourth Proportional to 13,118.60, 19,678.04 and 10,502.73

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Solution

The fourth proportional to 13,118.60, 19,678.04 and 10,502.73 is: 15,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.60 : 19,678.04 = 10,502.73 : x
  2. Step 2: Convert to fraction form
    13,118.60/19,678.04 = 10,502.73/x
  3. Step 3: Cross multiply
    13,118.60x = 19,678.04 × 10,502.73
  4. Step 4: Simplify right side
    13,118.60x = 206,673,141.05
  5. Step 5: Solve for x
    x = 206,673,141.05/13,118.60
  6. Step 6: Final answer
    x = 15,754.21

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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.