Home / 12,814.95-17,684.67-7,150.05

Finding the Fourth Proportional to 12,814.95, 17,684.67 and 7,150.05

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Solution

The fourth proportional to 12,814.95, 17,684.67 and 7,150.05 is: 9,867.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.95 : 17,684.67 = 7,150.05 : x
  2. Step 2: Convert to fraction form
    12,814.95/17,684.67 = 7,150.05/x
  3. Step 3: Cross multiply
    12,814.95x = 17,684.67 × 7,150.05
  4. Step 4: Simplify right side
    12,814.95x = 126,446,274.73
  5. Step 5: Solve for x
    x = 126,446,274.73/12,814.95
  6. Step 6: Final answer
    x = 9,867.09

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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.