Home / 11,756.72-17,615.64-7,862.24

Finding the Fourth Proportional to 11,756.72, 17,615.64 and 7,862.24

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Solution

The fourth proportional to 11,756.72, 17,615.64 and 7,862.24 is: 11,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.72 : 17,615.64 = 7,862.24 : x
  2. Step 2: Convert to fraction form
    11,756.72/17,615.64 = 7,862.24/x
  3. Step 3: Cross multiply
    11,756.72x = 17,615.64 × 7,862.24
  4. Step 4: Simplify right side
    11,756.72x = 138,498,389.43
  5. Step 5: Solve for x
    x = 138,498,389.43/11,756.72
  6. Step 6: Final answer
    x = 11,780.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.