Home / 14,650.79-20,218.16-7,936.43

Finding the Fourth Proportional to 14,650.79, 20,218.16 and 7,936.43

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Solution

The fourth proportional to 14,650.79, 20,218.16 and 7,936.43 is: 10,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.79 : 20,218.16 = 7,936.43 : x
  2. Step 2: Convert to fraction form
    14,650.79/20,218.16 = 7,936.43/x
  3. Step 3: Cross multiply
    14,650.79x = 20,218.16 × 7,936.43
  4. Step 4: Simplify right side
    14,650.79x = 160,459,870.80
  5. Step 5: Solve for x
    x = 160,459,870.80/14,650.79
  6. Step 6: Final answer
    x = 10,952.31

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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.