Home / 8,661.14-12,995.55-4,216.35

Finding the Fourth Proportional to 8,661.14, 12,995.55 and 4,216.35

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Solution

The fourth proportional to 8,661.14, 12,995.55 and 4,216.35 is: 6,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.14 : 12,995.55 = 4,216.35 : x
  2. Step 2: Convert to fraction form
    8,661.14/12,995.55 = 4,216.35/x
  3. Step 3: Cross multiply
    8,661.14x = 12,995.55 × 4,216.35
  4. Step 4: Simplify right side
    8,661.14x = 54,793,787.24
  5. Step 5: Solve for x
    x = 54,793,787.24/8,661.14
  6. Step 6: Final answer
    x = 6,326.40

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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.