Home / 12,558.46-18,727.88-11,005.66

Finding the Fourth Proportional to 12,558.46, 18,727.88 and 11,005.66

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Solution

The fourth proportional to 12,558.46, 18,727.88 and 11,005.66 is: 16,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.46 : 18,727.88 = 11,005.66 : x
  2. Step 2: Convert to fraction form
    12,558.46/18,727.88 = 11,005.66/x
  3. Step 3: Cross multiply
    12,558.46x = 18,727.88 × 11,005.66
  4. Step 4: Simplify right side
    12,558.46x = 206,112,679.80
  5. Step 5: Solve for x
    x = 206,112,679.80/12,558.46
  6. Step 6: Final answer
    x = 16,412.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.