Home / 11,153.40-15,391.82-6,373.99

Finding the Fourth Proportional to 11,153.40, 15,391.82 and 6,373.99

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Solution

The fourth proportional to 11,153.40, 15,391.82 and 6,373.99 is: 8,796.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.40 : 15,391.82 = 6,373.99 : x
  2. Step 2: Convert to fraction form
    11,153.40/15,391.82 = 6,373.99/x
  3. Step 3: Cross multiply
    11,153.40x = 15,391.82 × 6,373.99
  4. Step 4: Simplify right side
    11,153.40x = 98,107,341.94
  5. Step 5: Solve for x
    x = 98,107,341.94/11,153.40
  6. Step 6: Final answer
    x = 8,796.19

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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.