Home / 13,826.64-19,080.76-7,539

Finding the Fourth Proportional to 13,826.64, 19,080.76 and 7,539

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Solution

The fourth proportional to 13,826.64, 19,080.76 and 7,539 is: 10,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.64 : 19,080.76 = 7,539 : x
  2. Step 2: Convert to fraction form
    13,826.64/19,080.76 = 7,539/x
  3. Step 3: Cross multiply
    13,826.64x = 19,080.76 × 7,539
  4. Step 4: Simplify right side
    13,826.64x = 143,849,849.64
  5. Step 5: Solve for x
    x = 143,849,849.64/13,826.64
  6. Step 6: Final answer
    x = 10,403.82

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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.