Home / 12,748.35-19,133.76-6,830.09

Finding the Fourth Proportional to 12,748.35, 19,133.76 and 6,830.09

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Solution

The fourth proportional to 12,748.35, 19,133.76 and 6,830.09 is: 10,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.35 : 19,133.76 = 6,830.09 : x
  2. Step 2: Convert to fraction form
    12,748.35/19,133.76 = 6,830.09/x
  3. Step 3: Cross multiply
    12,748.35x = 19,133.76 × 6,830.09
  4. Step 4: Simplify right side
    12,748.35x = 130,685,207.17
  5. Step 5: Solve for x
    x = 130,685,207.17/12,748.35
  6. Step 6: Final answer
    x = 10,251.15

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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.