Home / 13,656.04-20,486.22-4,890.76

Finding the Fourth Proportional to 13,656.04, 20,486.22 and 4,890.76

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Solution

The fourth proportional to 13,656.04, 20,486.22 and 4,890.76 is: 7,336.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.04 : 20,486.22 = 4,890.76 : x
  2. Step 2: Convert to fraction form
    13,656.04/20,486.22 = 4,890.76/x
  3. Step 3: Cross multiply
    13,656.04x = 20,486.22 × 4,890.76
  4. Step 4: Simplify right side
    13,656.04x = 100,193,185.33
  5. Step 5: Solve for x
    x = 100,193,185.33/13,656.04
  6. Step 6: Final answer
    x = 7,336.91

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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.