Home / 13,518.08-18,644.66-11,632.81

Finding the Fourth Proportional to 13,518.08, 18,644.66 and 11,632.81

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Solution

The fourth proportional to 13,518.08, 18,644.66 and 11,632.81 is: 16,044.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.08 : 18,644.66 = 11,632.81 : x
  2. Step 2: Convert to fraction form
    13,518.08/18,644.66 = 11,632.81/x
  3. Step 3: Cross multiply
    13,518.08x = 18,644.66 × 11,632.81
  4. Step 4: Simplify right side
    13,518.08x = 216,889,635.91
  5. Step 5: Solve for x
    x = 216,889,635.91/13,518.08
  6. Step 6: Final answer
    x = 16,044.41

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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.