Home / 14,028.31-21,015.47-8,765.39

Finding the Fourth Proportional to 14,028.31, 21,015.47 and 8,765.39

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Solution

The fourth proportional to 14,028.31, 21,015.47 and 8,765.39 is: 13,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.31 : 21,015.47 = 8,765.39 : x
  2. Step 2: Convert to fraction form
    14,028.31/21,015.47 = 8,765.39/x
  3. Step 3: Cross multiply
    14,028.31x = 21,015.47 × 8,765.39
  4. Step 4: Simplify right side
    14,028.31x = 184,208,738.04
  5. Step 5: Solve for x
    x = 184,208,738.04/14,028.31
  6. Step 6: Final answer
    x = 13,131.21

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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.