Home / 18,172.48-25,045.32-13,448.56

Finding the Fourth Proportional to 18,172.48, 25,045.32 and 13,448.56

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Solution

The fourth proportional to 18,172.48, 25,045.32 and 13,448.56 is: 18,534.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.48 : 25,045.32 = 13,448.56 : x
  2. Step 2: Convert to fraction form
    18,172.48/25,045.32 = 13,448.56/x
  3. Step 3: Cross multiply
    18,172.48x = 25,045.32 × 13,448.56
  4. Step 4: Simplify right side
    18,172.48x = 336,823,488.74
  5. Step 5: Solve for x
    x = 336,823,488.74/18,172.48
  6. Step 6: Final answer
    x = 18,534.81

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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.