Home / 14,015.62-19,341.75-7,728.13

Finding the Fourth Proportional to 14,015.62, 19,341.75 and 7,728.13

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Solution

The fourth proportional to 14,015.62, 19,341.75 and 7,728.13 is: 10,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.62 : 19,341.75 = 7,728.13 : x
  2. Step 2: Convert to fraction form
    14,015.62/19,341.75 = 7,728.13/x
  3. Step 3: Cross multiply
    14,015.62x = 19,341.75 × 7,728.13
  4. Step 4: Simplify right side
    14,015.62x = 149,475,558.43
  5. Step 5: Solve for x
    x = 149,475,558.43/14,015.62
  6. Step 6: Final answer
    x = 10,664.93

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Half scale
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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.