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Finding the Fourth Proportional to 8,556.62, 11,807.29 and 4,779.48

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Solution

The fourth proportional to 8,556.62, 11,807.29 and 4,779.48 is: 6,595.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.62 : 11,807.29 = 4,779.48 : x
  2. Step 2: Convert to fraction form
    8,556.62/11,807.29 = 4,779.48/x
  3. Step 3: Cross multiply
    8,556.62x = 11,807.29 × 4,779.48
  4. Step 4: Simplify right side
    8,556.62x = 56,432,706.41
  5. Step 5: Solve for x
    x = 56,432,706.41/8,556.62
  6. Step 6: Final answer
    x = 6,595.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.