Home / 13,282.22-18,327.94-7,615.42

Finding the Fourth Proportional to 13,282.22, 18,327.94 and 7,615.42

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Solution

The fourth proportional to 13,282.22, 18,327.94 and 7,615.42 is: 10,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.22 : 18,327.94 = 7,615.42 : x
  2. Step 2: Convert to fraction form
    13,282.22/18,327.94 = 7,615.42/x
  3. Step 3: Cross multiply
    13,282.22x = 18,327.94 × 7,615.42
  4. Step 4: Simplify right side
    13,282.22x = 139,574,895.98
  5. Step 5: Solve for x
    x = 139,574,895.98/13,282.22
  6. Step 6: Final answer
    x = 10,508.40

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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.