Home / 14,313.92-21,470.64-3,925.28

Finding the Fourth Proportional to 14,313.92, 21,470.64 and 3,925.28

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Solution

The fourth proportional to 14,313.92, 21,470.64 and 3,925.28 is: 5,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.92 : 21,470.64 = 3,925.28 : x
  2. Step 2: Convert to fraction form
    14,313.92/21,470.64 = 3,925.28/x
  3. Step 3: Cross multiply
    14,313.92x = 21,470.64 × 3,925.28
  4. Step 4: Simplify right side
    14,313.92x = 84,278,273.78
  5. Step 5: Solve for x
    x = 84,278,273.78/14,313.92
  6. Step 6: Final answer
    x = 5,887.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.