Home / 12,505.63-18,742.72-11,011.18

Finding the Fourth Proportional to 12,505.63, 18,742.72 and 11,011.18

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Solution

The fourth proportional to 12,505.63, 18,742.72 and 11,011.18 is: 16,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.63 : 18,742.72 = 11,011.18 : x
  2. Step 2: Convert to fraction form
    12,505.63/18,742.72 = 11,011.18/x
  3. Step 3: Cross multiply
    12,505.63x = 18,742.72 × 11,011.18
  4. Step 4: Simplify right side
    12,505.63x = 206,379,463.61
  5. Step 5: Solve for x
    x = 206,379,463.61/12,505.63
  6. Step 6: Final answer
    x = 16,502.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.