Home / 14,579.58-20,129.32-11,216.19

Finding the Fourth Proportional to 14,579.58, 20,129.32 and 11,216.19

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Solution

The fourth proportional to 14,579.58, 20,129.32 and 11,216.19 is: 15,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.58 : 20,129.32 = 11,216.19 : x
  2. Step 2: Convert to fraction form
    14,579.58/20,129.32 = 11,216.19/x
  3. Step 3: Cross multiply
    14,579.58x = 20,129.32 × 11,216.19
  4. Step 4: Simplify right side
    14,579.58x = 225,774,277.69
  5. Step 5: Solve for x
    x = 225,774,277.69/14,579.58
  6. Step 6: Final answer
    x = 15,485.65

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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.