Home / 8,302.08-12,449.88-4,140.72

Finding the Fourth Proportional to 8,302.08, 12,449.88 and 4,140.72

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Solution

The fourth proportional to 8,302.08, 12,449.88 and 4,140.72 is: 6,209.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.08 : 12,449.88 = 4,140.72 : x
  2. Step 2: Convert to fraction form
    8,302.08/12,449.88 = 4,140.72/x
  3. Step 3: Cross multiply
    8,302.08x = 12,449.88 × 4,140.72
  4. Step 4: Simplify right side
    8,302.08x = 51,551,467.11
  5. Step 5: Solve for x
    x = 51,551,467.11/8,302.08
  6. Step 6: Final answer
    x = 6,209.46

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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.