Home / 14,287.68-19,716.84-8,238.60

Finding the Fourth Proportional to 14,287.68, 19,716.84 and 8,238.60

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Solution

The fourth proportional to 14,287.68, 19,716.84 and 8,238.60 is: 11,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.68 : 19,716.84 = 8,238.60 : x
  2. Step 2: Convert to fraction form
    14,287.68/19,716.84 = 8,238.60/x
  3. Step 3: Cross multiply
    14,287.68x = 19,716.84 × 8,238.60
  4. Step 4: Simplify right side
    14,287.68x = 162,439,158.02
  5. Step 5: Solve for x
    x = 162,439,158.02/14,287.68
  6. Step 6: Final answer
    x = 11,369.18

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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.