Home / 11,890.31-16,408.40-6,585.17

Finding the Fourth Proportional to 11,890.31, 16,408.40 and 6,585.17

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Solution

The fourth proportional to 11,890.31, 16,408.40 and 6,585.17 is: 9,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.31 : 16,408.40 = 6,585.17 : x
  2. Step 2: Convert to fraction form
    11,890.31/16,408.40 = 6,585.17/x
  3. Step 3: Cross multiply
    11,890.31x = 16,408.40 × 6,585.17
  4. Step 4: Simplify right side
    11,890.31x = 108,051,988.46
  5. Step 5: Solve for x
    x = 108,051,988.46/11,890.31
  6. Step 6: Final answer
    x = 9,087.40

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Half scale
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Double scale
Find fourth proportional to 11,891.31, 16,409.77 and 6,586.17
Similar ratio
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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.