Home / 14,020.96-21,033.36-5,135.12

Finding the Fourth Proportional to 14,020.96, 21,033.36 and 5,135.12

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Solution

The fourth proportional to 14,020.96, 21,033.36 and 5,135.12 is: 7,703.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.96 : 21,033.36 = 5,135.12 : x
  2. Step 2: Convert to fraction form
    14,020.96/21,033.36 = 5,135.12/x
  3. Step 3: Cross multiply
    14,020.96x = 21,033.36 × 5,135.12
  4. Step 4: Simplify right side
    14,020.96x = 108,008,827.60
  5. Step 5: Solve for x
    x = 108,008,827.60/14,020.96
  6. Step 6: Final answer
    x = 7,703.38

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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.