Home / 12,912.48-19,397.88-11,162.88

Finding the Fourth Proportional to 12,912.48, 19,397.88 and 11,162.88

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Solution

The fourth proportional to 12,912.48, 19,397.88 and 11,162.88 is: 16,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.48 : 19,397.88 = 11,162.88 : x
  2. Step 2: Convert to fraction form
    12,912.48/19,397.88 = 11,162.88/x
  3. Step 3: Cross multiply
    12,912.48x = 19,397.88 × 11,162.88
  4. Step 4: Simplify right side
    12,912.48x = 216,536,206.69
  5. Step 5: Solve for x
    x = 216,536,206.69/12,912.48
  6. Step 6: Final answer
    x = 16,769.53

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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.