Home / 8,556.12-12,824.08-3,870.64

Finding the Fourth Proportional to 8,556.12, 12,824.08 and 3,870.64

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Solution

The fourth proportional to 8,556.12, 12,824.08 and 3,870.64 is: 5,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.12 : 12,824.08 = 3,870.64 : x
  2. Step 2: Convert to fraction form
    8,556.12/12,824.08 = 3,870.64/x
  3. Step 3: Cross multiply
    8,556.12x = 12,824.08 × 3,870.64
  4. Step 4: Simplify right side
    8,556.12x = 49,637,397.01
  5. Step 5: Solve for x
    x = 49,637,397.01/8,556.12
  6. Step 6: Final answer
    x = 5,801.39

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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.