Home / 7,963.37-10,990.09-5,136.62

Finding the Fourth Proportional to 7,963.37, 10,990.09 and 5,136.62

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Solution

The fourth proportional to 7,963.37, 10,990.09 and 5,136.62 is: 7,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.37 : 10,990.09 = 5,136.62 : x
  2. Step 2: Convert to fraction form
    7,963.37/10,990.09 = 5,136.62/x
  3. Step 3: Cross multiply
    7,963.37x = 10,990.09 × 5,136.62
  4. Step 4: Simplify right side
    7,963.37x = 56,451,916.10
  5. Step 5: Solve for x
    x = 56,451,916.10/7,963.37
  6. Step 6: Final answer
    x = 7,088.95

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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.