Home / 14,018.34-19,346.85-8,639.68

Finding the Fourth Proportional to 14,018.34, 19,346.85 and 8,639.68

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Solution

The fourth proportional to 14,018.34, 19,346.85 and 8,639.68 is: 11,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.34 : 19,346.85 = 8,639.68 : x
  2. Step 2: Convert to fraction form
    14,018.34/19,346.85 = 8,639.68/x
  3. Step 3: Cross multiply
    14,018.34x = 19,346.85 × 8,639.68
  4. Step 4: Simplify right side
    14,018.34x = 167,150,593.01
  5. Step 5: Solve for x
    x = 167,150,593.01/14,018.34
  6. Step 6: Final answer
    x = 11,923.71

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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.