Home / 12,408.36-17,124.99-7,104.87

Finding the Fourth Proportional to 12,408.36, 17,124.99 and 7,104.87

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Solution

The fourth proportional to 12,408.36, 17,124.99 and 7,104.87 is: 9,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.36 : 17,124.99 = 7,104.87 : x
  2. Step 2: Convert to fraction form
    12,408.36/17,124.99 = 7,104.87/x
  3. Step 3: Cross multiply
    12,408.36x = 17,124.99 × 7,104.87
  4. Step 4: Simplify right side
    12,408.36x = 121,670,827.70
  5. Step 5: Solve for x
    x = 121,670,827.70/12,408.36
  6. Step 6: Final answer
    x = 9,805.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.