Home / 11,271.21-15,560.48-8,437.56

Finding the Fourth Proportional to 11,271.21, 15,560.48 and 8,437.56

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Solution

The fourth proportional to 11,271.21, 15,560.48 and 8,437.56 is: 11,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.21 : 15,560.48 = 8,437.56 : x
  2. Step 2: Convert to fraction form
    11,271.21/15,560.48 = 8,437.56/x
  3. Step 3: Cross multiply
    11,271.21x = 15,560.48 × 8,437.56
  4. Step 4: Simplify right side
    11,271.21x = 131,292,441.44
  5. Step 5: Solve for x
    x = 131,292,441.44/11,271.21
  6. Step 6: Final answer
    x = 11,648.48

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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.