Home / 13,439.91-20,165.31-4,680.96

Finding the Fourth Proportional to 13,439.91, 20,165.31 and 4,680.96

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Solution

The fourth proportional to 13,439.91, 20,165.31 and 4,680.96 is: 7,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.91 : 20,165.31 = 4,680.96 : x
  2. Step 2: Convert to fraction form
    13,439.91/20,165.31 = 4,680.96/x
  3. Step 3: Cross multiply
    13,439.91x = 20,165.31 × 4,680.96
  4. Step 4: Simplify right side
    13,439.91x = 94,393,009.50
  5. Step 5: Solve for x
    x = 94,393,009.50/13,439.91
  6. Step 6: Final answer
    x = 7,023.34

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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.