Home / 12,827.55-19,233.03-8,431.68

Finding the Fourth Proportional to 12,827.55, 19,233.03 and 8,431.68

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Solution

The fourth proportional to 12,827.55, 19,233.03 and 8,431.68 is: 12,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.55 : 19,233.03 = 8,431.68 : x
  2. Step 2: Convert to fraction form
    12,827.55/19,233.03 = 8,431.68/x
  3. Step 3: Cross multiply
    12,827.55x = 19,233.03 × 8,431.68
  4. Step 4: Simplify right side
    12,827.55x = 162,166,754.39
  5. Step 5: Solve for x
    x = 162,166,754.39/12,827.55
  6. Step 6: Final answer
    x = 12,642.07

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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.