Home / 8,722.23-12,036.42-4,945.74

Finding the Fourth Proportional to 8,722.23, 12,036.42 and 4,945.74

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Solution

The fourth proportional to 8,722.23, 12,036.42 and 4,945.74 is: 6,824.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.23 : 12,036.42 = 4,945.74 : x
  2. Step 2: Convert to fraction form
    8,722.23/12,036.42 = 4,945.74/x
  3. Step 3: Cross multiply
    8,722.23x = 12,036.42 × 4,945.74
  4. Step 4: Simplify right side
    8,722.23x = 59,529,040.33
  5. Step 5: Solve for x
    x = 59,529,040.33/8,722.23
  6. Step 6: Final answer
    x = 6,824.98

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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.