Home / 11,686.20-17,509.36-6,425.62

Finding the Fourth Proportional to 11,686.20, 17,509.36 and 6,425.62

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Solution

The fourth proportional to 11,686.20, 17,509.36 and 6,425.62 is: 9,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.20 : 17,509.36 = 6,425.62 : x
  2. Step 2: Convert to fraction form
    11,686.20/17,509.36 = 6,425.62/x
  3. Step 3: Cross multiply
    11,686.20x = 17,509.36 × 6,425.62
  4. Step 4: Simplify right side
    11,686.20x = 112,508,374.13
  5. Step 5: Solve for x
    x = 112,508,374.13/11,686.20
  6. Step 6: Final answer
    x = 9,627.46

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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.