Home / 12,289.56-16,823.91-12,201.72

Finding the Fourth Proportional to 12,289.56, 16,823.91 and 12,201.72

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Solution

The fourth proportional to 12,289.56, 16,823.91 and 12,201.72 is: 16,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.56 : 16,823.91 = 12,201.72 : x
  2. Step 2: Convert to fraction form
    12,289.56/16,823.91 = 12,201.72/x
  3. Step 3: Cross multiply
    12,289.56x = 16,823.91 × 12,201.72
  4. Step 4: Simplify right side
    12,289.56x = 205,280,639.13
  5. Step 5: Solve for x
    x = 205,280,639.13/12,289.56
  6. Step 6: Final answer
    x = 16,703.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.