Home / 12,254.46-18,382.57-5,131.53

Finding the Fourth Proportional to 12,254.46, 18,382.57 and 5,131.53

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Solution

The fourth proportional to 12,254.46, 18,382.57 and 5,131.53 is: 7,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.46 : 18,382.57 = 5,131.53 : x
  2. Step 2: Convert to fraction form
    12,254.46/18,382.57 = 5,131.53/x
  3. Step 3: Cross multiply
    12,254.46x = 18,382.57 × 5,131.53
  4. Step 4: Simplify right side
    12,254.46x = 94,330,709.43
  5. Step 5: Solve for x
    x = 94,330,709.43/12,254.46
  6. Step 6: Final answer
    x = 7,697.66

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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.