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Finding the Fourth Proportional to 8,968.93, 13,434.86 and 5,259.99

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Solution

The fourth proportional to 8,968.93, 13,434.86 and 5,259.99 is: 7,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.93 : 13,434.86 = 5,259.99 : x
  2. Step 2: Convert to fraction form
    8,968.93/13,434.86 = 5,259.99/x
  3. Step 3: Cross multiply
    8,968.93x = 13,434.86 × 5,259.99
  4. Step 4: Simplify right side
    8,968.93x = 70,667,217.21
  5. Step 5: Solve for x
    x = 70,667,217.21/8,968.93
  6. Step 6: Final answer
    x = 7,879.12

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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.