Home / 12,537.19-18,793.13-7,860.49

Finding the Fourth Proportional to 12,537.19, 18,793.13 and 7,860.49

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Solution

The fourth proportional to 12,537.19, 18,793.13 and 7,860.49 is: 11,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.19 : 18,793.13 = 7,860.49 : x
  2. Step 2: Convert to fraction form
    12,537.19/18,793.13 = 7,860.49/x
  3. Step 3: Cross multiply
    12,537.19x = 18,793.13 × 7,860.49
  4. Step 4: Simplify right side
    12,537.19x = 147,723,168.36
  5. Step 5: Solve for x
    x = 147,723,168.36/12,537.19
  6. Step 6: Final answer
    x = 11,782.80

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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.