Home / 11,670.21-16,081.86-8,303.60

Finding the Fourth Proportional to 11,670.21, 16,081.86 and 8,303.60

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Solution

The fourth proportional to 11,670.21, 16,081.86 and 8,303.60 is: 11,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.21 : 16,081.86 = 8,303.60 : x
  2. Step 2: Convert to fraction form
    11,670.21/16,081.86 = 8,303.60/x
  3. Step 3: Cross multiply
    11,670.21x = 16,081.86 × 8,303.60
  4. Step 4: Simplify right side
    11,670.21x = 133,537,252.29
  5. Step 5: Solve for x
    x = 133,537,252.29/11,670.21
  6. Step 6: Final answer
    x = 11,442.57

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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.