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Finding the Fourth Proportional to 8,345.46, 11,513.46 and 5,360.88

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Solution

The fourth proportional to 8,345.46, 11,513.46 and 5,360.88 is: 7,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.46 : 11,513.46 = 5,360.88 : x
  2. Step 2: Convert to fraction form
    8,345.46/11,513.46 = 5,360.88/x
  3. Step 3: Cross multiply
    8,345.46x = 11,513.46 × 5,360.88
  4. Step 4: Simplify right side
    8,345.46x = 61,722,277.44
  5. Step 5: Solve for x
    x = 61,722,277.44/8,345.46
  6. Step 6: Final answer
    x = 7,395.91

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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.