Home / 8,472.06-11,702.60-6,506.90

Finding the Fourth Proportional to 8,472.06, 11,702.60 and 6,506.90

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Solution

The fourth proportional to 8,472.06, 11,702.60 and 6,506.90 is: 8,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.06 : 11,702.60 = 6,506.90 : x
  2. Step 2: Convert to fraction form
    8,472.06/11,702.60 = 6,506.90/x
  3. Step 3: Cross multiply
    8,472.06x = 11,702.60 × 6,506.90
  4. Step 4: Simplify right side
    8,472.06x = 76,147,647.94
  5. Step 5: Solve for x
    x = 76,147,647.94/8,472.06
  6. Step 6: Final answer
    x = 8,988.09

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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.