Home / 16,691.55-23,032.74-9,975.84

Finding the Fourth Proportional to 16,691.55, 23,032.74 and 9,975.84

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Solution

The fourth proportional to 16,691.55, 23,032.74 and 9,975.84 is: 13,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.55 : 23,032.74 = 9,975.84 : x
  2. Step 2: Convert to fraction form
    16,691.55/23,032.74 = 9,975.84/x
  3. Step 3: Cross multiply
    16,691.55x = 23,032.74 × 9,975.84
  4. Step 4: Simplify right side
    16,691.55x = 229,770,929.00
  5. Step 5: Solve for x
    x = 229,770,929.00/16,691.55
  6. Step 6: Final answer
    x = 13,765.70

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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.