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Finding the Fourth Proportional to 8,754.81, 13,126.41 and 4,589.79

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Solution

The fourth proportional to 8,754.81, 13,126.41 and 4,589.79 is: 6,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.81 : 13,126.41 = 4,589.79 : x
  2. Step 2: Convert to fraction form
    8,754.81/13,126.41 = 4,589.79/x
  3. Step 3: Cross multiply
    8,754.81x = 13,126.41 × 4,589.79
  4. Step 4: Simplify right side
    8,754.81x = 60,247,465.35
  5. Step 5: Solve for x
    x = 60,247,465.35/8,754.81
  6. Step 6: Final answer
    x = 6,881.64

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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.