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Finding the Fourth Proportional to 8,803.37, 13,136.79 and 7,868.63

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Solution

The fourth proportional to 8,803.37, 13,136.79 and 7,868.63 is: 11,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.37 : 13,136.79 = 7,868.63 : x
  2. Step 2: Convert to fraction form
    8,803.37/13,136.79 = 7,868.63/x
  3. Step 3: Cross multiply
    8,803.37x = 13,136.79 × 7,868.63
  4. Step 4: Simplify right side
    8,803.37x = 103,368,474.21
  5. Step 5: Solve for x
    x = 103,368,474.21/8,803.37
  6. Step 6: Final answer
    x = 11,741.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.