Home / 11,890.32-16,408.74-6,585.18

Finding the Fourth Proportional to 11,890.32, 16,408.74 and 6,585.18

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Solution

The fourth proportional to 11,890.32, 16,408.74 and 6,585.18 is: 9,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.32 : 16,408.74 = 6,585.18 : x
  2. Step 2: Convert to fraction form
    11,890.32/16,408.74 = 6,585.18/x
  3. Step 3: Cross multiply
    11,890.32x = 16,408.74 × 6,585.18
  4. Step 4: Simplify right side
    11,890.32x = 108,054,506.47
  5. Step 5: Solve for x
    x = 108,054,506.47/11,890.32
  6. Step 6: Final answer
    x = 9,087.60

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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.