Home / 11,579.29-15,985.38-7,334.79

Finding the Fourth Proportional to 11,579.29, 15,985.38 and 7,334.79

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Solution

The fourth proportional to 11,579.29, 15,985.38 and 7,334.79 is: 10,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.29 : 15,985.38 = 7,334.79 : x
  2. Step 2: Convert to fraction form
    11,579.29/15,985.38 = 7,334.79/x
  3. Step 3: Cross multiply
    11,579.29x = 15,985.38 × 7,334.79
  4. Step 4: Simplify right side
    11,579.29x = 117,249,405.37
  5. Step 5: Solve for x
    x = 117,249,405.37/11,579.29
  6. Step 6: Final answer
    x = 10,125.79

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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.