Home / 13,464.38-18,581.86-7,800.66

Finding the Fourth Proportional to 13,464.38, 18,581.86 and 7,800.66

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Solution

The fourth proportional to 13,464.38, 18,581.86 and 7,800.66 is: 10,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.38 : 18,581.86 = 7,800.66 : x
  2. Step 2: Convert to fraction form
    13,464.38/18,581.86 = 7,800.66/x
  3. Step 3: Cross multiply
    13,464.38x = 18,581.86 × 7,800.66
  4. Step 4: Simplify right side
    13,464.38x = 144,950,772.03
  5. Step 5: Solve for x
    x = 144,950,772.03/13,464.38
  6. Step 6: Final answer
    x = 10,765.50

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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.