Home / 12,553.23-17,317.99-7,771.91

Finding the Fourth Proportional to 12,553.23, 17,317.99 and 7,771.91

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Solution

The fourth proportional to 12,553.23, 17,317.99 and 7,771.91 is: 10,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.23 : 17,317.99 = 7,771.91 : x
  2. Step 2: Convert to fraction form
    12,553.23/17,317.99 = 7,771.91/x
  3. Step 3: Cross multiply
    12,553.23x = 17,317.99 × 7,771.91
  4. Step 4: Simplify right side
    12,553.23x = 134,593,782.79
  5. Step 5: Solve for x
    x = 134,593,782.79/12,553.23
  6. Step 6: Final answer
    x = 10,721.84

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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.