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Finding the Fourth Proportional to 9,364.78, 12,920.26 and 5,827.77

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Solution

The fourth proportional to 9,364.78, 12,920.26 and 5,827.77 is: 8,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.78 : 12,920.26 = 5,827.77 : x
  2. Step 2: Convert to fraction form
    9,364.78/12,920.26 = 5,827.77/x
  3. Step 3: Cross multiply
    9,364.78x = 12,920.26 × 5,827.77
  4. Step 4: Simplify right side
    9,364.78x = 75,296,303.62
  5. Step 5: Solve for x
    x = 75,296,303.62/9,364.78
  6. Step 6: Final answer
    x = 8,040.37

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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.