Home / 14,426.39-19,909.02-8,138.75

Finding the Fourth Proportional to 14,426.39, 19,909.02 and 8,138.75

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Solution

The fourth proportional to 14,426.39, 19,909.02 and 8,138.75 is: 11,231.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,426.39 : 19,909.02 = 8,138.75 : x
  2. Step 2: Convert to fraction form
    14,426.39/19,909.02 = 8,138.75/x
  3. Step 3: Cross multiply
    14,426.39x = 19,909.02 × 8,138.75
  4. Step 4: Simplify right side
    14,426.39x = 162,034,536.53
  5. Step 5: Solve for x
    x = 162,034,536.53/14,426.39
  6. Step 6: Final answer
    x = 11,231.81

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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.