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Finding the Fourth Proportional to 8,804.57, 13,128.32 and 7,826.57

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Solution

The fourth proportional to 8,804.57, 13,128.32 and 7,826.57 is: 11,670.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.57 : 13,128.32 = 7,826.57 : x
  2. Step 2: Convert to fraction form
    8,804.57/13,128.32 = 7,826.57/x
  3. Step 3: Cross multiply
    8,804.57x = 13,128.32 × 7,826.57
  4. Step 4: Simplify right side
    8,804.57x = 102,749,767.85
  5. Step 5: Solve for x
    x = 102,749,767.85/8,804.57
  6. Step 6: Final answer
    x = 11,670.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.