Home / 13,382.58-18,464.85-8,077.62

Finding the Fourth Proportional to 13,382.58, 18,464.85 and 8,077.62

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Solution

The fourth proportional to 13,382.58, 18,464.85 and 8,077.62 is: 11,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.58 : 18,464.85 = 8,077.62 : x
  2. Step 2: Convert to fraction form
    13,382.58/18,464.85 = 8,077.62/x
  3. Step 3: Cross multiply
    13,382.58x = 18,464.85 × 8,077.62
  4. Step 4: Simplify right side
    13,382.58x = 149,152,041.66
  5. Step 5: Solve for x
    x = 149,152,041.66/13,382.58
  6. Step 6: Final answer
    x = 11,145.24

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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.