Home / 13,382.96-18,464.52-8,075.60

Finding the Fourth Proportional to 13,382.96, 18,464.52 and 8,075.60

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Solution

The fourth proportional to 13,382.96, 18,464.52 and 8,075.60 is: 11,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.96 : 18,464.52 = 8,075.60 : x
  2. Step 2: Convert to fraction form
    13,382.96/18,464.52 = 8,075.60/x
  3. Step 3: Cross multiply
    13,382.96x = 18,464.52 × 8,075.60
  4. Step 4: Simplify right side
    13,382.96x = 149,112,077.71
  5. Step 5: Solve for x
    x = 149,112,077.71/13,382.96
  6. Step 6: Final answer
    x = 11,141.94

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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.