Home / 12,633.75-18,943.34-5,613.75

Finding the Fourth Proportional to 12,633.75, 18,943.34 and 5,613.75

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Solution

The fourth proportional to 12,633.75, 18,943.34 and 5,613.75 is: 8,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.75 : 18,943.34 = 5,613.75 : x
  2. Step 2: Convert to fraction form
    12,633.75/18,943.34 = 5,613.75/x
  3. Step 3: Cross multiply
    12,633.75x = 18,943.34 × 5,613.75
  4. Step 4: Simplify right side
    12,633.75x = 106,343,146.86
  5. Step 5: Solve for x
    x = 106,343,146.86/12,633.75
  6. Step 6: Final answer
    x = 8,417.39

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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.