Home / 14,471.74-21,679.56-8,212.82

Finding the Fourth Proportional to 14,471.74, 21,679.56 and 8,212.82

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Solution

The fourth proportional to 14,471.74, 21,679.56 and 8,212.82 is: 12,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.74 : 21,679.56 = 8,212.82 : x
  2. Step 2: Convert to fraction form
    14,471.74/21,679.56 = 8,212.82/x
  3. Step 3: Cross multiply
    14,471.74x = 21,679.56 × 8,212.82
  4. Step 4: Simplify right side
    14,471.74x = 178,050,323.96
  5. Step 5: Solve for x
    x = 178,050,323.96/14,471.74
  6. Step 6: Final answer
    x = 12,303.31

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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.