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Finding the Fourth Proportional to 9,405.81, 14,094.81 and 8,879.85

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Solution

The fourth proportional to 9,405.81, 14,094.81 and 8,879.85 is: 13,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.81 : 14,094.81 = 8,879.85 : x
  2. Step 2: Convert to fraction form
    9,405.81/14,094.81 = 8,879.85/x
  3. Step 3: Cross multiply
    9,405.81x = 14,094.81 × 8,879.85
  4. Step 4: Simplify right side
    9,405.81x = 125,159,798.58
  5. Step 5: Solve for x
    x = 125,159,798.58/9,405.81
  6. Step 6: Final answer
    x = 13,306.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.