Home / 8,515.12-12,774.48-2,672.32

Finding the Fourth Proportional to 8,515.12, 12,774.48 and 2,672.32

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Solution

The fourth proportional to 8,515.12, 12,774.48 and 2,672.32 is: 4,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.12 : 12,774.48 = 2,672.32 : x
  2. Step 2: Convert to fraction form
    8,515.12/12,774.48 = 2,672.32/x
  3. Step 3: Cross multiply
    8,515.12x = 12,774.48 × 2,672.32
  4. Step 4: Simplify right side
    8,515.12x = 34,137,498.39
  5. Step 5: Solve for x
    x = 34,137,498.39/8,515.12
  6. Step 6: Final answer
    x = 4,009.04

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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.