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Finding the Fourth Proportional to 8,586.98, 12,863.70 and 5,918.10

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Solution

The fourth proportional to 8,586.98, 12,863.70 and 5,918.10 is: 8,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.98 : 12,863.70 = 5,918.10 : x
  2. Step 2: Convert to fraction form
    8,586.98/12,863.70 = 5,918.10/x
  3. Step 3: Cross multiply
    8,586.98x = 12,863.70 × 5,918.10
  4. Step 4: Simplify right side
    8,586.98x = 76,128,643.86
  5. Step 5: Solve for x
    x = 76,128,643.86/8,586.98
  6. Step 6: Final answer
    x = 8,865.59

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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.