Home / 14,142.82-21,214.29-4,782.89

Finding the Fourth Proportional to 14,142.82, 21,214.29 and 4,782.89

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Solution

The fourth proportional to 14,142.82, 21,214.29 and 4,782.89 is: 7,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.82 : 21,214.29 = 4,782.89 : x
  2. Step 2: Convert to fraction form
    14,142.82/21,214.29 = 4,782.89/x
  3. Step 3: Cross multiply
    14,142.82x = 21,214.29 × 4,782.89
  4. Step 4: Simplify right side
    14,142.82x = 101,465,485.51
  5. Step 5: Solve for x
    x = 101,465,485.51/14,142.82
  6. Step 6: Final answer
    x = 7,174.35

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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.