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Finding the Fourth Proportional to 8,777.40, 13,072.98 and 8,735.01

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Solution

The fourth proportional to 8,777.40, 13,072.98 and 8,735.01 is: 13,009.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.40 : 13,072.98 = 8,735.01 : x
  2. Step 2: Convert to fraction form
    8,777.40/13,072.98 = 8,735.01/x
  3. Step 3: Cross multiply
    8,777.40x = 13,072.98 × 8,735.01
  4. Step 4: Simplify right side
    8,777.40x = 114,192,611.03
  5. Step 5: Solve for x
    x = 114,192,611.03/8,777.40
  6. Step 6: Final answer
    x = 13,009.84

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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.