Home / 13,826.53-19,080.37-7,538.91

Finding the Fourth Proportional to 13,826.53, 19,080.37 and 7,538.91

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Solution

The fourth proportional to 13,826.53, 19,080.37 and 7,538.91 is: 10,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.53 : 19,080.37 = 7,538.91 : x
  2. Step 2: Convert to fraction form
    13,826.53/19,080.37 = 7,538.91/x
  3. Step 3: Cross multiply
    13,826.53x = 19,080.37 × 7,538.91
  4. Step 4: Simplify right side
    13,826.53x = 143,845,192.20
  5. Step 5: Solve for x
    x = 143,845,192.20/13,826.53
  6. Step 6: Final answer
    x = 10,403.56

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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.