Home / 15,113.09-20,848.92-9,805.97

Finding the Fourth Proportional to 15,113.09, 20,848.92 and 9,805.97

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Solution

The fourth proportional to 15,113.09, 20,848.92 and 9,805.97 is: 13,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.09 : 20,848.92 = 9,805.97 : x
  2. Step 2: Convert to fraction form
    15,113.09/20,848.92 = 9,805.97/x
  3. Step 3: Cross multiply
    15,113.09x = 20,848.92 × 9,805.97
  4. Step 4: Simplify right side
    15,113.09x = 204,443,884.05
  5. Step 5: Solve for x
    x = 204,443,884.05/15,113.09
  6. Step 6: Final answer
    x = 13,527.60

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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.