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Finding the Fourth Proportional to 11,852.80, 17,779.20 and 4,060.60

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Solution

The fourth proportional to 11,852.80, 17,779.20 and 4,060.60 is: 6,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,852.80 : 17,779.20 = 4,060.60 : x
  2. Step 2: Convert to fraction form
    11,852.80/17,779.20 = 4,060.60/x
  3. Step 3: Cross multiply
    11,852.80x = 17,779.20 × 4,060.60
  4. Step 4: Simplify right side
    11,852.80x = 72,194,219.52
  5. Step 5: Solve for x
    x = 72,194,219.52/11,852.80
  6. Step 6: Final answer
    x = 6,090.90

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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.