Home / 13,345.44-18,415.09-7,376.28

Finding the Fourth Proportional to 13,345.44, 18,415.09 and 7,376.28

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Solution

The fourth proportional to 13,345.44, 18,415.09 and 7,376.28 is: 10,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.44 : 18,415.09 = 7,376.28 : x
  2. Step 2: Convert to fraction form
    13,345.44/18,415.09 = 7,376.28/x
  3. Step 3: Cross multiply
    13,345.44x = 18,415.09 × 7,376.28
  4. Step 4: Simplify right side
    13,345.44x = 135,834,841.62
  5. Step 5: Solve for x
    x = 135,834,841.62/13,345.44
  6. Step 6: Final answer
    x = 10,178.37

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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.