Home / 8,476.90-11,673.93-6,115.30

Finding the Fourth Proportional to 8,476.90, 11,673.93 and 6,115.30

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Solution

The fourth proportional to 8,476.90, 11,673.93 and 6,115.30 is: 8,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.90 : 11,673.93 = 6,115.30 : x
  2. Step 2: Convert to fraction form
    8,476.90/11,673.93 = 6,115.30/x
  3. Step 3: Cross multiply
    8,476.90x = 11,673.93 × 6,115.30
  4. Step 4: Simplify right side
    8,476.90x = 71,389,584.13
  5. Step 5: Solve for x
    x = 71,389,584.13/8,476.90
  6. Step 6: Final answer
    x = 8,421.66

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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.