Home / 9,379.48-12,939.98-6,021.76

Finding the Fourth Proportional to 9,379.48, 12,939.98 and 6,021.76

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Solution

The fourth proportional to 9,379.48, 12,939.98 and 6,021.76 is: 8,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.48 : 12,939.98 = 6,021.76 : x
  2. Step 2: Convert to fraction form
    9,379.48/12,939.98 = 6,021.76/x
  3. Step 3: Cross multiply
    9,379.48x = 12,939.98 × 6,021.76
  4. Step 4: Simplify right side
    9,379.48x = 77,921,453.96
  5. Step 5: Solve for x
    x = 77,921,453.96/9,379.48
  6. Step 6: Final answer
    x = 8,307.65

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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.