Home / 12,818.35-19,220.67-6,575.81

Finding the Fourth Proportional to 12,818.35, 19,220.67 and 6,575.81

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Solution

The fourth proportional to 12,818.35, 19,220.67 and 6,575.81 is: 9,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.35 : 19,220.67 = 6,575.81 : x
  2. Step 2: Convert to fraction form
    12,818.35/19,220.67 = 6,575.81/x
  3. Step 3: Cross multiply
    12,818.35x = 19,220.67 × 6,575.81
  4. Step 4: Simplify right side
    12,818.35x = 126,391,473.99
  5. Step 5: Solve for x
    x = 126,391,473.99/12,818.35
  6. Step 6: Final answer
    x = 9,860.20

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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.