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Finding the Fourth Proportional to 9,759.79, 14,639.70 and 5,626.81

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Solution

The fourth proportional to 9,759.79, 14,639.70 and 5,626.81 is: 8,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,759.79 : 14,639.70 = 5,626.81 : x
  2. Step 2: Convert to fraction form
    9,759.79/14,639.70 = 5,626.81/x
  3. Step 3: Cross multiply
    9,759.79x = 14,639.70 × 5,626.81
  4. Step 4: Simplify right side
    9,759.79x = 82,374,810.36
  5. Step 5: Solve for x
    x = 82,374,810.36/9,759.79
  6. Step 6: Final answer
    x = 8,440.22

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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.