Home / 13,642.18-20,466.04-4,876.88

Finding the Fourth Proportional to 13,642.18, 20,466.04 and 4,876.88

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Solution

The fourth proportional to 13,642.18, 20,466.04 and 4,876.88 is: 7,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.18 : 20,466.04 = 4,876.88 : x
  2. Step 2: Convert to fraction form
    13,642.18/20,466.04 = 4,876.88/x
  3. Step 3: Cross multiply
    13,642.18x = 20,466.04 × 4,876.88
  4. Step 4: Simplify right side
    13,642.18x = 99,810,421.16
  5. Step 5: Solve for x
    x = 99,810,421.16/13,642.18
  6. Step 6: Final answer
    x = 7,316.31

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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.