Home / 8,642.22-12,960.09-4,261.74

Finding the Fourth Proportional to 8,642.22, 12,960.09 and 4,261.74

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Solution

The fourth proportional to 8,642.22, 12,960.09 and 4,261.74 is: 6,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.22 : 12,960.09 = 4,261.74 : x
  2. Step 2: Convert to fraction form
    8,642.22/12,960.09 = 4,261.74/x
  3. Step 3: Cross multiply
    8,642.22x = 12,960.09 × 4,261.74
  4. Step 4: Simplify right side
    8,642.22x = 55,232,533.96
  5. Step 5: Solve for x
    x = 55,232,533.96/8,642.22
  6. Step 6: Final answer
    x = 6,391.01

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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.