Home / 6,368.33-8,772.61-5,421.09

Finding the Fourth Proportional to 6,368.33, 8,772.61 and 5,421.09

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Solution

The fourth proportional to 6,368.33, 8,772.61 and 5,421.09 is: 7,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.33 : 8,772.61 = 5,421.09 : x
  2. Step 2: Convert to fraction form
    6,368.33/8,772.61 = 5,421.09/x
  3. Step 3: Cross multiply
    6,368.33x = 8,772.61 × 5,421.09
  4. Step 4: Simplify right side
    6,368.33x = 47,557,108.34
  5. Step 5: Solve for x
    x = 47,557,108.34/6,368.33
  6. Step 6: Final answer
    x = 7,467.75

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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.