Home / 13,676.08-20,516.88-4,317.55

Finding the Fourth Proportional to 13,676.08, 20,516.88 and 4,317.55

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Solution

The fourth proportional to 13,676.08, 20,516.88 and 4,317.55 is: 6,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.08 : 20,516.88 = 4,317.55 : x
  2. Step 2: Convert to fraction form
    13,676.08/20,516.88 = 4,317.55/x
  3. Step 3: Cross multiply
    13,676.08x = 20,516.88 × 4,317.55
  4. Step 4: Simplify right side
    13,676.08x = 88,582,655.24
  5. Step 5: Solve for x
    x = 88,582,655.24/13,676.08
  6. Step 6: Final answer
    x = 6,477.20

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1.5x scale

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.