Home / 14,018.09-19,346.51-8,639.44

Finding the Fourth Proportional to 14,018.09, 19,346.51 and 8,639.44

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Solution

The fourth proportional to 14,018.09, 19,346.51 and 8,639.44 is: 11,923.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.09 : 19,346.51 = 8,639.44 : x
  2. Step 2: Convert to fraction form
    14,018.09/19,346.51 = 8,639.44/x
  3. Step 3: Cross multiply
    14,018.09x = 19,346.51 × 8,639.44
  4. Step 4: Simplify right side
    14,018.09x = 167,142,920.79
  5. Step 5: Solve for x
    x = 167,142,920.79/14,018.09
  6. Step 6: Final answer
    x = 11,923.38

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Double 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.