Home / 11,690.03-16,128.23-6,652.98

Finding the Fourth Proportional to 11,690.03, 16,128.23 and 6,652.98

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Solution

The fourth proportional to 11,690.03, 16,128.23 and 6,652.98 is: 9,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.03 : 16,128.23 = 6,652.98 : x
  2. Step 2: Convert to fraction form
    11,690.03/16,128.23 = 6,652.98/x
  3. Step 3: Cross multiply
    11,690.03x = 16,128.23 × 6,652.98
  4. Step 4: Simplify right side
    11,690.03x = 107,300,868.74
  5. Step 5: Solve for x
    x = 107,300,868.74/11,690.03
  6. Step 6: Final answer
    x = 9,178.84

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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.