Home / 13,899.56-20,851.50-4,667.72

Finding the Fourth Proportional to 13,899.56, 20,851.50 and 4,667.72

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Solution

The fourth proportional to 13,899.56, 20,851.50 and 4,667.72 is: 7,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.56 : 20,851.50 = 4,667.72 : x
  2. Step 2: Convert to fraction form
    13,899.56/20,851.50 = 4,667.72/x
  3. Step 3: Cross multiply
    13,899.56x = 20,851.50 × 4,667.72
  4. Step 4: Simplify right side
    13,899.56x = 97,329,033.21
  5. Step 5: Solve for x
    x = 97,329,033.21/13,899.56
  6. Step 6: Final answer
    x = 7,002.31

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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.