Home / 12,131.64-16,740-7,095.60

Finding the Fourth Proportional to 12,131.64, 16,740 and 7,095.60

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Solution

The fourth proportional to 12,131.64, 16,740 and 7,095.60 is: 9,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.64 : 16,740 = 7,095.60 : x
  2. Step 2: Convert to fraction form
    12,131.64/16,740 = 7,095.60/x
  3. Step 3: Cross multiply
    12,131.64x = 16,740 × 7,095.60
  4. Step 4: Simplify right side
    12,131.64x = 118,780,344
  5. Step 5: Solve for x
    x = 118,780,344/12,131.64
  6. Step 6: Final answer
    x = 9,790.96

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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.