Home / 9,658.16-13,321.37-8,864.05

Finding the Fourth Proportional to 9,658.16, 13,321.37 and 8,864.05

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Solution

The fourth proportional to 9,658.16, 13,321.37 and 8,864.05 is: 12,226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658.16 : 13,321.37 = 8,864.05 : x
  2. Step 2: Convert to fraction form
    9,658.16/13,321.37 = 8,864.05/x
  3. Step 3: Cross multiply
    9,658.16x = 13,321.37 × 8,864.05
  4. Step 4: Simplify right side
    9,658.16x = 118,081,289.75
  5. Step 5: Solve for x
    x = 118,081,289.75/9,658.16
  6. Step 6: Final answer
    x = 12,226.06

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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.