Home / 14,122.89-19,493.37-8,814.51

Finding the Fourth Proportional to 14,122.89, 19,493.37 and 8,814.51

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Solution

The fourth proportional to 14,122.89, 19,493.37 and 8,814.51 is: 12,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.89 : 19,493.37 = 8,814.51 : x
  2. Step 2: Convert to fraction form
    14,122.89/19,493.37 = 8,814.51/x
  3. Step 3: Cross multiply
    14,122.89x = 19,493.37 × 8,814.51
  4. Step 4: Simplify right side
    14,122.89x = 171,824,504.80
  5. Step 5: Solve for x
    x = 171,824,504.80/14,122.89
  6. Step 6: Final answer
    x = 12,166.38

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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.