Home / 13,369.21-18,449.94-7,703.52

Finding the Fourth Proportional to 13,369.21, 18,449.94 and 7,703.52

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Solution

The fourth proportional to 13,369.21, 18,449.94 and 7,703.52 is: 10,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.21 : 18,449.94 = 7,703.52 : x
  2. Step 2: Convert to fraction form
    13,369.21/18,449.94 = 7,703.52/x
  3. Step 3: Cross multiply
    13,369.21x = 18,449.94 × 7,703.52
  4. Step 4: Simplify right side
    13,369.21x = 142,129,481.79
  5. Step 5: Solve for x
    x = 142,129,481.79/13,369.21
  6. Step 6: Final answer
    x = 10,631.11

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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.