Home / 14,867.72-20,518.08-8,153.61

Finding the Fourth Proportional to 14,867.72, 20,518.08 and 8,153.61

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Solution

The fourth proportional to 14,867.72, 20,518.08 and 8,153.61 is: 11,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.72 : 20,518.08 = 8,153.61 : x
  2. Step 2: Convert to fraction form
    14,867.72/20,518.08 = 8,153.61/x
  3. Step 3: Cross multiply
    14,867.72x = 20,518.08 × 8,153.61
  4. Step 4: Simplify right side
    14,867.72x = 167,296,422.27
  5. Step 5: Solve for x
    x = 167,296,422.27/14,867.72
  6. Step 6: Final answer
    x = 11,252.33

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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.