Home / 8,460.79-12,683.88-4,081.32

Finding the Fourth Proportional to 8,460.79, 12,683.88 and 4,081.32

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Solution

The fourth proportional to 8,460.79, 12,683.88 and 4,081.32 is: 6,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.79 : 12,683.88 = 4,081.32 : x
  2. Step 2: Convert to fraction form
    8,460.79/12,683.88 = 4,081.32/x
  3. Step 3: Cross multiply
    8,460.79x = 12,683.88 × 4,081.32
  4. Step 4: Simplify right side
    8,460.79x = 51,766,973.12
  5. Step 5: Solve for x
    x = 51,766,973.12/8,460.79
  6. Step 6: Final answer
    x = 6,118.46

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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.