Home / 13,547.31-18,695.17-7,579.02

Finding the Fourth Proportional to 13,547.31, 18,695.17 and 7,579.02

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Solution

The fourth proportional to 13,547.31, 18,695.17 and 7,579.02 is: 10,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.31 : 18,695.17 = 7,579.02 : x
  2. Step 2: Convert to fraction form
    13,547.31/18,695.17 = 7,579.02/x
  3. Step 3: Cross multiply
    13,547.31x = 18,695.17 × 7,579.02
  4. Step 4: Simplify right side
    13,547.31x = 141,691,067.33
  5. Step 5: Solve for x
    x = 141,691,067.33/13,547.31
  6. Step 6: Final answer
    x = 10,458.98

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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.