Home / 12,955.46-19,434.40-5,164.88

Finding the Fourth Proportional to 12,955.46, 19,434.40 and 5,164.88

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Solution

The fourth proportional to 12,955.46, 19,434.40 and 5,164.88 is: 7,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.46 : 19,434.40 = 5,164.88 : x
  2. Step 2: Convert to fraction form
    12,955.46/19,434.40 = 5,164.88/x
  3. Step 3: Cross multiply
    12,955.46x = 19,434.40 × 5,164.88
  4. Step 4: Simplify right side
    12,955.46x = 100,376,233.79
  5. Step 5: Solve for x
    x = 100,376,233.79/12,955.46
  6. Step 6: Final answer
    x = 7,747.80

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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.