Home / 8,239.11-12,358.80-4,540.65

Finding the Fourth Proportional to 8,239.11, 12,358.80 and 4,540.65

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Solution

The fourth proportional to 8,239.11, 12,358.80 and 4,540.65 is: 6,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.11 : 12,358.80 = 4,540.65 : x
  2. Step 2: Convert to fraction form
    8,239.11/12,358.80 = 4,540.65/x
  3. Step 3: Cross multiply
    8,239.11x = 12,358.80 × 4,540.65
  4. Step 4: Simplify right side
    8,239.11x = 56,116,985.22
  5. Step 5: Solve for x
    x = 56,116,985.22/8,239.11
  6. Step 6: Final answer
    x = 6,811.05

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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.