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Finding the Fourth Proportional to 8,376.93, 12,556.86 and 5,259.11

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Solution

The fourth proportional to 8,376.93, 12,556.86 and 5,259.11 is: 7,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.93 : 12,556.86 = 5,259.11 : x
  2. Step 2: Convert to fraction form
    8,376.93/12,556.86 = 5,259.11/x
  3. Step 3: Cross multiply
    8,376.93x = 12,556.86 × 5,259.11
  4. Step 4: Simplify right side
    8,376.93x = 66,037,845.21
  5. Step 5: Solve for x
    x = 66,037,845.21/8,376.93
  6. Step 6: Final answer
    x = 7,883.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.