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Finding the Fourth Proportional to 8,556.80, 12,835.20 and 6,051.20

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Solution

The fourth proportional to 8,556.80, 12,835.20 and 6,051.20 is: 9,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.80 : 12,835.20 = 6,051.20 : x
  2. Step 2: Convert to fraction form
    8,556.80/12,835.20 = 6,051.20/x
  3. Step 3: Cross multiply
    8,556.80x = 12,835.20 × 6,051.20
  4. Step 4: Simplify right side
    8,556.80x = 77,668,362.24
  5. Step 5: Solve for x
    x = 77,668,362.24/8,556.80
  6. Step 6: Final answer
    x = 9,076.80

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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.