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Finding the Fourth Proportional to 9,986.51, 14,903.81 and 8,879.37

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Solution

The fourth proportional to 9,986.51, 14,903.81 and 8,879.37 is: 13,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.51 : 14,903.81 = 8,879.37 : x
  2. Step 2: Convert to fraction form
    9,986.51/14,903.81 = 8,879.37/x
  3. Step 3: Cross multiply
    9,986.51x = 14,903.81 × 8,879.37
  4. Step 4: Simplify right side
    9,986.51x = 132,336,443.40
  5. Step 5: Solve for x
    x = 132,336,443.40/9,986.51
  6. Step 6: Final answer
    x = 13,251.53

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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.