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Finding the Fourth Proportional to 8,640.01, 11,923.08 and 4,863.19

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Solution

The fourth proportional to 8,640.01, 11,923.08 and 4,863.19 is: 6,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.01 : 11,923.08 = 4,863.19 : x
  2. Step 2: Convert to fraction form
    8,640.01/11,923.08 = 4,863.19/x
  3. Step 3: Cross multiply
    8,640.01x = 11,923.08 × 4,863.19
  4. Step 4: Simplify right side
    8,640.01x = 57,984,143.81
  5. Step 5: Solve for x
    x = 57,984,143.81/8,640.01
  6. Step 6: Final answer
    x = 6,711.12

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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.