Home / 14,313.75-21,470.77-5,426.69

Finding the Fourth Proportional to 14,313.75, 21,470.77 and 5,426.69

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Solution

The fourth proportional to 14,313.75, 21,470.77 and 5,426.69 is: 8,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.75 : 21,470.77 = 5,426.69 : x
  2. Step 2: Convert to fraction form
    14,313.75/21,470.77 = 5,426.69/x
  3. Step 3: Cross multiply
    14,313.75x = 21,470.77 × 5,426.69
  4. Step 4: Simplify right side
    14,313.75x = 116,515,252.96
  5. Step 5: Solve for x
    x = 116,515,252.96/14,313.75
  6. Step 6: Final answer
    x = 8,140.09

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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.