Home / 13,739.26-18,964.65-8,073.91

Finding the Fourth Proportional to 13,739.26, 18,964.65 and 8,073.91

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Solution

The fourth proportional to 13,739.26, 18,964.65 and 8,073.91 is: 11,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.26 : 18,964.65 = 8,073.91 : x
  2. Step 2: Convert to fraction form
    13,739.26/18,964.65 = 8,073.91/x
  3. Step 3: Cross multiply
    13,739.26x = 18,964.65 × 8,073.91
  4. Step 4: Simplify right side
    13,739.26x = 153,118,877.28
  5. Step 5: Solve for x
    x = 153,118,877.28/13,739.26
  6. Step 6: Final answer
    x = 11,144.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.