Home / 8,960.55-13,442.03-3,116.40

Finding the Fourth Proportional to 8,960.55, 13,442.03 and 3,116.40

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Solution

The fourth proportional to 8,960.55, 13,442.03 and 3,116.40 is: 4,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.55 : 13,442.03 = 3,116.40 : x
  2. Step 2: Convert to fraction form
    8,960.55/13,442.03 = 3,116.40/x
  3. Step 3: Cross multiply
    8,960.55x = 13,442.03 × 3,116.40
  4. Step 4: Simplify right side
    8,960.55x = 41,890,742.29
  5. Step 5: Solve for x
    x = 41,890,742.29/8,960.55
  6. Step 6: Final answer
    x = 4,675.02

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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.