Home / 12,748.84-19,134.78-5,358.76

Finding the Fourth Proportional to 12,748.84, 19,134.78 and 5,358.76

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Solution

The fourth proportional to 12,748.84, 19,134.78 and 5,358.76 is: 8,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.84 : 19,134.78 = 5,358.76 : x
  2. Step 2: Convert to fraction form
    12,748.84/19,134.78 = 5,358.76/x
  3. Step 3: Cross multiply
    12,748.84x = 19,134.78 × 5,358.76
  4. Step 4: Simplify right side
    12,748.84x = 102,538,693.67
  5. Step 5: Solve for x
    x = 102,538,693.67/12,748.84
  6. Step 6: Final answer
    x = 8,042.98

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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.