Home / 14,175.78-21,218.19-9,421.03

Finding the Fourth Proportional to 14,175.78, 21,218.19 and 9,421.03

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Solution

The fourth proportional to 14,175.78, 21,218.19 and 9,421.03 is: 14,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.78 : 21,218.19 = 9,421.03 : x
  2. Step 2: Convert to fraction form
    14,175.78/21,218.19 = 9,421.03/x
  3. Step 3: Cross multiply
    14,175.78x = 21,218.19 × 9,421.03
  4. Step 4: Simplify right side
    14,175.78x = 199,897,266.39
  5. Step 5: Solve for x
    x = 199,897,266.39/14,175.78
  6. Step 6: Final answer
    x = 14,101.32

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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.