Home / 8,647.26-12,970.35-3,449.40

Finding the Fourth Proportional to 8,647.26, 12,970.35 and 3,449.40

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Solution

The fourth proportional to 8,647.26, 12,970.35 and 3,449.40 is: 5,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.26 : 12,970.35 = 3,449.40 : x
  2. Step 2: Convert to fraction form
    8,647.26/12,970.35 = 3,449.40/x
  3. Step 3: Cross multiply
    8,647.26x = 12,970.35 × 3,449.40
  4. Step 4: Simplify right side
    8,647.26x = 44,739,925.29
  5. Step 5: Solve for x
    x = 44,739,925.29/8,647.26
  6. Step 6: Final answer
    x = 5,173.88

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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.