Home / 11,847.40-17,771.10-9,658.60

Finding the Fourth Proportional to 11,847.40, 17,771.10 and 9,658.60

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Solution

The fourth proportional to 11,847.40, 17,771.10 and 9,658.60 is: 14,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.40 : 17,771.10 = 9,658.60 : x
  2. Step 2: Convert to fraction form
    11,847.40/17,771.10 = 9,658.60/x
  3. Step 3: Cross multiply
    11,847.40x = 17,771.10 × 9,658.60
  4. Step 4: Simplify right side
    11,847.40x = 171,643,946.46
  5. Step 5: Solve for x
    x = 171,643,946.46/11,847.40
  6. Step 6: Final answer
    x = 14,487.90

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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.