Home / 6,129.66-8,447.40-5,525.94

Finding the Fourth Proportional to 6,129.66, 8,447.40 and 5,525.94

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Solution

The fourth proportional to 6,129.66, 8,447.40 and 5,525.94 is: 7,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.66 : 8,447.40 = 5,525.94 : x
  2. Step 2: Convert to fraction form
    6,129.66/8,447.40 = 5,525.94/x
  3. Step 3: Cross multiply
    6,129.66x = 8,447.40 × 5,525.94
  4. Step 4: Simplify right side
    6,129.66x = 46,679,825.56
  5. Step 5: Solve for x
    x = 46,679,825.56/6,129.66
  6. Step 6: Final answer
    x = 7,615.40

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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.