Home / 12,241.55-18,370.49-7,862.15

Finding the Fourth Proportional to 12,241.55, 18,370.49 and 7,862.15

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Solution

The fourth proportional to 12,241.55, 18,370.49 and 7,862.15 is: 11,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.55 : 18,370.49 = 7,862.15 : x
  2. Step 2: Convert to fraction form
    12,241.55/18,370.49 = 7,862.15/x
  3. Step 3: Cross multiply
    12,241.55x = 18,370.49 × 7,862.15
  4. Step 4: Simplify right side
    12,241.55x = 144,431,416.79
  5. Step 5: Solve for x
    x = 144,431,416.79/12,241.55
  6. Step 6: Final answer
    x = 11,798.46

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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.