Home / 12,462.27-17,197.95-7,986.05

Finding the Fourth Proportional to 12,462.27, 17,197.95 and 7,986.05

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Solution

The fourth proportional to 12,462.27, 17,197.95 and 7,986.05 is: 11,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.27 : 17,197.95 = 7,986.05 : x
  2. Step 2: Convert to fraction form
    12,462.27/17,197.95 = 7,986.05/x
  3. Step 3: Cross multiply
    12,462.27x = 17,197.95 × 7,986.05
  4. Step 4: Simplify right side
    12,462.27x = 137,343,688.60
  5. Step 5: Solve for x
    x = 137,343,688.60/12,462.27
  6. Step 6: Final answer
    x = 11,020.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.