Home / 12,908.77-19,363.25-5,117.58

Finding the Fourth Proportional to 12,908.77, 19,363.25 and 5,117.58

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Solution

The fourth proportional to 12,908.77, 19,363.25 and 5,117.58 is: 7,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.77 : 19,363.25 = 5,117.58 : x
  2. Step 2: Convert to fraction form
    12,908.77/19,363.25 = 5,117.58/x
  3. Step 3: Cross multiply
    12,908.77x = 19,363.25 × 5,117.58
  4. Step 4: Simplify right side
    12,908.77x = 99,092,993.73
  5. Step 5: Solve for x
    x = 99,092,993.73/12,908.77
  6. Step 6: Final answer
    x = 7,676.41

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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.