Home / 15,329.08-21,141.44-12,944.56

Finding the Fourth Proportional to 15,329.08, 21,141.44 and 12,944.56

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Solution

The fourth proportional to 15,329.08, 21,141.44 and 12,944.56 is: 17,852.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.08 : 21,141.44 = 12,944.56 : x
  2. Step 2: Convert to fraction form
    15,329.08/21,141.44 = 12,944.56/x
  3. Step 3: Cross multiply
    15,329.08x = 21,141.44 × 12,944.56
  4. Step 4: Simplify right side
    15,329.08x = 273,666,638.57
  5. Step 5: Solve for x
    x = 273,666,638.57/15,329.08
  6. Step 6: Final answer
    x = 17,852.78

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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.