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Finding the Fourth Proportional to 8,555.12, 11,804.12 and 4,827.76

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Solution

The fourth proportional to 8,555.12, 11,804.12 and 4,827.76 is: 6,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.12 : 11,804.12 = 4,827.76 : x
  2. Step 2: Convert to fraction form
    8,555.12/11,804.12 = 4,827.76/x
  3. Step 3: Cross multiply
    8,555.12x = 11,804.12 × 4,827.76
  4. Step 4: Simplify right side
    8,555.12x = 56,987,458.37
  5. Step 5: Solve for x
    x = 56,987,458.37/8,555.12
  6. Step 6: Final answer
    x = 6,661.21

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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.