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Finding the Fourth Proportional to 8,289.70, 12,435.95 and 5,904.69

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Solution

The fourth proportional to 8,289.70, 12,435.95 and 5,904.69 is: 8,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.70 : 12,435.95 = 5,904.69 : x
  2. Step 2: Convert to fraction form
    8,289.70/12,435.95 = 5,904.69/x
  3. Step 3: Cross multiply
    8,289.70x = 12,435.95 × 5,904.69
  4. Step 4: Simplify right side
    8,289.70x = 73,430,429.61
  5. Step 5: Solve for x
    x = 73,430,429.61/8,289.70
  6. Step 6: Final answer
    x = 8,858.03

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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.