Home / 12,427.58-17,151.27-9,278.30

Finding the Fourth Proportional to 12,427.58, 17,151.27 and 9,278.30

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Solution

The fourth proportional to 12,427.58, 17,151.27 and 9,278.30 is: 12,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.58 : 17,151.27 = 9,278.30 : x
  2. Step 2: Convert to fraction form
    12,427.58/17,151.27 = 9,278.30/x
  3. Step 3: Cross multiply
    12,427.58x = 17,151.27 × 9,278.30
  4. Step 4: Simplify right side
    12,427.58x = 159,134,628.44
  5. Step 5: Solve for x
    x = 159,134,628.44/12,427.58
  6. Step 6: Final answer
    x = 12,804.96

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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.