Home / 13,675.56-20,513.79-4,315.68

Finding the Fourth Proportional to 13,675.56, 20,513.79 and 4,315.68

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Solution

The fourth proportional to 13,675.56, 20,513.79 and 4,315.68 is: 6,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.56 : 20,513.79 = 4,315.68 : x
  2. Step 2: Convert to fraction form
    13,675.56/20,513.79 = 4,315.68/x
  3. Step 3: Cross multiply
    13,675.56x = 20,513.79 × 4,315.68
  4. Step 4: Simplify right side
    13,675.56x = 88,530,953.23
  5. Step 5: Solve for x
    x = 88,530,953.23/13,675.56
  6. Step 6: Final answer
    x = 6,473.66

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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.