Home / 14,653.06-20,221.14-7,938.82

Finding the Fourth Proportional to 14,653.06, 20,221.14 and 7,938.82

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Solution

The fourth proportional to 14,653.06, 20,221.14 and 7,938.82 is: 10,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.06 : 20,221.14 = 7,938.82 : x
  2. Step 2: Convert to fraction form
    14,653.06/20,221.14 = 7,938.82/x
  3. Step 3: Cross multiply
    14,653.06x = 20,221.14 × 7,938.82
  4. Step 4: Simplify right side
    14,653.06x = 160,531,990.65
  5. Step 5: Solve for x
    x = 160,531,990.65/14,653.06
  6. Step 6: Final answer
    x = 10,955.53

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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.