Home / 14,148.18-21,231.18-7,912.28

Finding the Fourth Proportional to 14,148.18, 21,231.18 and 7,912.28

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Solution

The fourth proportional to 14,148.18, 21,231.18 and 7,912.28 is: 11,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.18 : 21,231.18 = 7,912.28 : x
  2. Step 2: Convert to fraction form
    14,148.18/21,231.18 = 7,912.28/x
  3. Step 3: Cross multiply
    14,148.18x = 21,231.18 × 7,912.28
  4. Step 4: Simplify right side
    14,148.18x = 167,986,934.73
  5. Step 5: Solve for x
    x = 167,986,934.73/14,148.18
  6. Step 6: Final answer
    x = 11,873.40

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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.