Home / 12,955.74-19,434.21-4,191.33

Finding the Fourth Proportional to 12,955.74, 19,434.21 and 4,191.33

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Solution

The fourth proportional to 12,955.74, 19,434.21 and 4,191.33 is: 6,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.74 : 19,434.21 = 4,191.33 : x
  2. Step 2: Convert to fraction form
    12,955.74/19,434.21 = 4,191.33/x
  3. Step 3: Cross multiply
    12,955.74x = 19,434.21 × 4,191.33
  4. Step 4: Simplify right side
    12,955.74x = 81,455,235.98
  5. Step 5: Solve for x
    x = 81,455,235.98/12,955.74
  6. Step 6: Final answer
    x = 6,287.20

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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.