Home / 12,955.88-19,427.43-5,458.07

Finding the Fourth Proportional to 12,955.88, 19,427.43 and 5,458.07

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Solution

The fourth proportional to 12,955.88, 19,427.43 and 5,458.07 is: 8,184.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.88 : 19,427.43 = 5,458.07 : x
  2. Step 2: Convert to fraction form
    12,955.88/19,427.43 = 5,458.07/x
  3. Step 3: Cross multiply
    12,955.88x = 19,427.43 × 5,458.07
  4. Step 4: Simplify right side
    12,955.88x = 106,036,272.86
  5. Step 5: Solve for x
    x = 106,036,272.86/12,955.88
  6. Step 6: Final answer
    x = 8,184.41

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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.