Home / 12,529.13-18,795.74-5,131.62

Finding the Fourth Proportional to 12,529.13, 18,795.74 and 5,131.62

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Solution

The fourth proportional to 12,529.13, 18,795.74 and 5,131.62 is: 7,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.13 : 18,795.74 = 5,131.62 : x
  2. Step 2: Convert to fraction form
    12,529.13/18,795.74 = 5,131.62/x
  3. Step 3: Cross multiply
    12,529.13x = 18,795.74 × 5,131.62
  4. Step 4: Simplify right side
    12,529.13x = 96,452,569.64
  5. Step 5: Solve for x
    x = 96,452,569.64/12,529.13
  6. Step 6: Final answer
    x = 7,698.27

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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.