Home / 12,834.09-19,223.11-7,888.74

Finding the Fourth Proportional to 12,834.09, 19,223.11 and 7,888.74

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Solution

The fourth proportional to 12,834.09, 19,223.11 and 7,888.74 is: 11,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.09 : 19,223.11 = 7,888.74 : x
  2. Step 2: Convert to fraction form
    12,834.09/19,223.11 = 7,888.74/x
  3. Step 3: Cross multiply
    12,834.09x = 19,223.11 × 7,888.74
  4. Step 4: Simplify right side
    12,834.09x = 151,646,020.67
  5. Step 5: Solve for x
    x = 151,646,020.67/12,834.09
  6. Step 6: Final answer
    x = 11,815.88

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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.