Home / 12,747.84-19,133.28-5,357.76

Finding the Fourth Proportional to 12,747.84, 19,133.28 and 5,357.76

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Solution

The fourth proportional to 12,747.84, 19,133.28 and 5,357.76 is: 8,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.84 : 19,133.28 = 5,357.76 : x
  2. Step 2: Convert to fraction form
    12,747.84/19,133.28 = 5,357.76/x
  3. Step 3: Cross multiply
    12,747.84x = 19,133.28 × 5,357.76
  4. Step 4: Simplify right side
    12,747.84x = 102,511,522.25
  5. Step 5: Solve for x
    x = 102,511,522.25/12,747.84
  6. Step 6: Final answer
    x = 8,041.48

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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.