Home / 12,416.70-17,135.67-7,383.90

Finding the Fourth Proportional to 12,416.70, 17,135.67 and 7,383.90

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Solution

The fourth proportional to 12,416.70, 17,135.67 and 7,383.90 is: 10,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.70 : 17,135.67 = 7,383.90 : x
  2. Step 2: Convert to fraction form
    12,416.70/17,135.67 = 7,383.90/x
  3. Step 3: Cross multiply
    12,416.70x = 17,135.67 × 7,383.90
  4. Step 4: Simplify right side
    12,416.70x = 126,528,073.71
  5. Step 5: Solve for x
    x = 126,528,073.71/12,416.70
  6. Step 6: Final answer
    x = 10,190.15

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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.