Home / 13,372.96-18,458.69-8,657.56

Finding the Fourth Proportional to 13,372.96, 18,458.69 and 8,657.56

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Solution

The fourth proportional to 13,372.96, 18,458.69 and 8,657.56 is: 11,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.96 : 18,458.69 = 8,657.56 : x
  2. Step 2: Convert to fraction form
    13,372.96/18,458.69 = 8,657.56/x
  3. Step 3: Cross multiply
    13,372.96x = 18,458.69 × 8,657.56
  4. Step 4: Simplify right side
    13,372.96x = 159,807,216.20
  5. Step 5: Solve for x
    x = 159,807,216.20/13,372.96
  6. Step 6: Final answer
    x = 11,950.03

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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.