Home / 13,685.72-20,525.58-4,326.44

Finding the Fourth Proportional to 13,685.72, 20,525.58 and 4,326.44

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Solution

The fourth proportional to 13,685.72, 20,525.58 and 4,326.44 is: 6,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.72 : 20,525.58 = 4,326.44 : x
  2. Step 2: Convert to fraction form
    13,685.72/20,525.58 = 4,326.44/x
  3. Step 3: Cross multiply
    13,685.72x = 20,525.58 × 4,326.44
  4. Step 4: Simplify right side
    13,685.72x = 88,802,587.71
  5. Step 5: Solve for x
    x = 88,802,587.71/13,685.72
  6. Step 6: Final answer
    x = 6,488.71

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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.