Home / 18,764.96-28,129.76-6,444.32

Finding the Fourth Proportional to 18,764.96, 28,129.76 and 6,444.32

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Solution

The fourth proportional to 18,764.96, 28,129.76 and 6,444.32 is: 9,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.96 : 28,129.76 = 6,444.32 : x
  2. Step 2: Convert to fraction form
    18,764.96/28,129.76 = 6,444.32/x
  3. Step 3: Cross multiply
    18,764.96x = 28,129.76 × 6,444.32
  4. Step 4: Simplify right side
    18,764.96x = 181,277,174.96
  5. Step 5: Solve for x
    x = 181,277,174.96/18,764.96
  6. Step 6: Final answer
    x = 9,660.41

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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.