Home / 18,665.16-27,975.48-13,012.26

Finding the Fourth Proportional to 18,665.16, 27,975.48 and 13,012.26

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Solution

The fourth proportional to 18,665.16, 27,975.48 and 13,012.26 is: 19,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.16 : 27,975.48 = 13,012.26 : x
  2. Step 2: Convert to fraction form
    18,665.16/27,975.48 = 13,012.26/x
  3. Step 3: Cross multiply
    18,665.16x = 27,975.48 × 13,012.26
  4. Step 4: Simplify right side
    18,665.16x = 364,024,219.38
  5. Step 5: Solve for x
    x = 364,024,219.38/18,665.16
  6. Step 6: Final answer
    x = 19,502.87

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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.