Home / 14,997.96-20,683.80-9,687.18

Finding the Fourth Proportional to 14,997.96, 20,683.80 and 9,687.18

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Solution

The fourth proportional to 14,997.96, 20,683.80 and 9,687.18 is: 13,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997.96 : 20,683.80 = 9,687.18 : x
  2. Step 2: Convert to fraction form
    14,997.96/20,683.80 = 9,687.18/x
  3. Step 3: Cross multiply
    14,997.96x = 20,683.80 × 9,687.18
  4. Step 4: Simplify right side
    14,997.96x = 200,367,693.68
  5. Step 5: Solve for x
    x = 200,367,693.68/14,997.96
  6. Step 6: Final answer
    x = 13,359.66

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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.