Home / 15,901.72-21,944.62-8,828.21

Finding the Fourth Proportional to 15,901.72, 21,944.62 and 8,828.21

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Solution

The fourth proportional to 15,901.72, 21,944.62 and 8,828.21 is: 12,183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.72 : 21,944.62 = 8,828.21 : x
  2. Step 2: Convert to fraction form
    15,901.72/21,944.62 = 8,828.21/x
  3. Step 3: Cross multiply
    15,901.72x = 21,944.62 × 8,828.21
  4. Step 4: Simplify right side
    15,901.72x = 193,731,779.63
  5. Step 5: Solve for x
    x = 193,731,779.63/15,901.72
  6. Step 6: Final answer
    x = 12,183.07

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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.