Home / 13,655.18-20,466.79-5,216.16

Finding the Fourth Proportional to 13,655.18, 20,466.79 and 5,216.16

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Solution

The fourth proportional to 13,655.18, 20,466.79 and 5,216.16 is: 7,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.18 : 20,466.79 = 5,216.16 : x
  2. Step 2: Convert to fraction form
    13,655.18/20,466.79 = 5,216.16/x
  3. Step 3: Cross multiply
    13,655.18x = 20,466.79 × 5,216.16
  4. Step 4: Simplify right side
    13,655.18x = 106,758,051.33
  5. Step 5: Solve for x
    x = 106,758,051.33/13,655.18
  6. Step 6: Final answer
    x = 7,818.14

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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.