Home / 35,986.12-53,986.86-12,613.96

Finding the Fourth Proportional to 35,986.12, 53,986.86 and 12,613.96

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Solution

The fourth proportional to 35,986.12, 53,986.86 and 12,613.96 is: 18,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,986.12 : 53,986.86 = 12,613.96 : x
  2. Step 2: Convert to fraction form
    35,986.12/53,986.86 = 12,613.96/x
  3. Step 3: Cross multiply
    35,986.12x = 53,986.86 × 12,613.96
  4. Step 4: Simplify right side
    35,986.12x = 680,988,092.57
  5. Step 5: Solve for x
    x = 680,988,092.57/35,986.12
  6. Step 6: Final answer
    x = 18,923.63

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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.