Home / 12,516.24-18,768.36-4,720.08

Finding the Fourth Proportional to 12,516.24, 18,768.36 and 4,720.08

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Solution

The fourth proportional to 12,516.24, 18,768.36 and 4,720.08 is: 7,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.24 : 18,768.36 = 4,720.08 : x
  2. Step 2: Convert to fraction form
    12,516.24/18,768.36 = 4,720.08/x
  3. Step 3: Cross multiply
    12,516.24x = 18,768.36 × 4,720.08
  4. Step 4: Simplify right side
    12,516.24x = 88,588,160.67
  5. Step 5: Solve for x
    x = 88,588,160.67/12,516.24
  6. Step 6: Final answer
    x = 7,077.86

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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.