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Finding the Fourth Proportional to 9,986.00, 14,903.06 and 8,878.87

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Solution

The fourth proportional to 9,986.00, 14,903.06 and 8,878.87 is: 13,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.00 : 14,903.06 = 8,878.87 : x
  2. Step 2: Convert to fraction form
    9,986.00/14,903.06 = 8,878.87/x
  3. Step 3: Cross multiply
    9,986.00x = 14,903.06 × 8,878.87
  4. Step 4: Simplify right side
    9,986.00x = 132,322,333.93
  5. Step 5: Solve for x
    x = 132,322,333.93/9,986.00
  6. Step 6: Final answer
    x = 13,250.78

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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.