Home / 14,690.49-20,272.89-7,976.12

Finding the Fourth Proportional to 14,690.49, 20,272.89 and 7,976.12

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Solution

The fourth proportional to 14,690.49, 20,272.89 and 7,976.12 is: 11,007.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.49 : 20,272.89 = 7,976.12 : x
  2. Step 2: Convert to fraction form
    14,690.49/20,272.89 = 7,976.12/x
  3. Step 3: Cross multiply
    14,690.49x = 20,272.89 × 7,976.12
  4. Step 4: Simplify right side
    14,690.49x = 161,698,902.02
  5. Step 5: Solve for x
    x = 161,698,902.02/14,690.49
  6. Step 6: Final answer
    x = 11,007.05

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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.