Home / 11,424.60-17,129.52-4,765.72

Finding the Fourth Proportional to 11,424.60, 17,129.52 and 4,765.72

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Solution

The fourth proportional to 11,424.60, 17,129.52 and 4,765.72 is: 7,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.60 : 17,129.52 = 4,765.72 : x
  2. Step 2: Convert to fraction form
    11,424.60/17,129.52 = 4,765.72/x
  3. Step 3: Cross multiply
    11,424.60x = 17,129.52 × 4,765.72
  4. Step 4: Simplify right side
    11,424.60x = 81,634,496.05
  5. Step 5: Solve for x
    x = 81,634,496.05/11,424.60
  6. Step 6: Final answer
    x = 7,145.50

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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.