Home / 14,161.07-21,238.76-13,458.53

Finding the Fourth Proportional to 14,161.07, 21,238.76 and 13,458.53

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Solution

The fourth proportional to 14,161.07, 21,238.76 and 13,458.53 is: 20,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.07 : 21,238.76 = 13,458.53 : x
  2. Step 2: Convert to fraction form
    14,161.07/21,238.76 = 13,458.53/x
  3. Step 3: Cross multiply
    14,161.07x = 21,238.76 × 13,458.53
  4. Step 4: Simplify right side
    14,161.07x = 285,842,315.14
  5. Step 5: Solve for x
    x = 285,842,315.14/14,161.07
  6. Step 6: Final answer
    x = 20,185.09

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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.