Home / 14,146.09-21,220.53-5,261.91

Finding the Fourth Proportional to 14,146.09, 21,220.53 and 5,261.91

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Solution

The fourth proportional to 14,146.09, 21,220.53 and 5,261.91 is: 7,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.09 : 21,220.53 = 5,261.91 : x
  2. Step 2: Convert to fraction form
    14,146.09/21,220.53 = 5,261.91/x
  3. Step 3: Cross multiply
    14,146.09x = 21,220.53 × 5,261.91
  4. Step 4: Simplify right side
    14,146.09x = 111,660,568.67
  5. Step 5: Solve for x
    x = 111,660,568.67/14,146.09
  6. Step 6: Final answer
    x = 7,893.39

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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.