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Finding the Fourth Proportional to 7,617.65, 10,512.86 and 4,260.77

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Solution

The fourth proportional to 7,617.65, 10,512.86 and 4,260.77 is: 5,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.65 : 10,512.86 = 4,260.77 : x
  2. Step 2: Convert to fraction form
    7,617.65/10,512.86 = 4,260.77/x
  3. Step 3: Cross multiply
    7,617.65x = 10,512.86 × 4,260.77
  4. Step 4: Simplify right side
    7,617.65x = 44,792,880.01
  5. Step 5: Solve for x
    x = 44,792,880.01/7,617.65
  6. Step 6: Final answer
    x = 5,880.15

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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.