Home / 12,818.48-19,245.42-8,859.98

Finding the Fourth Proportional to 12,818.48, 19,245.42 and 8,859.98

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Solution

The fourth proportional to 12,818.48, 19,245.42 and 8,859.98 is: 13,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.48 : 19,245.42 = 8,859.98 : x
  2. Step 2: Convert to fraction form
    12,818.48/19,245.42 = 8,859.98/x
  3. Step 3: Cross multiply
    12,818.48x = 19,245.42 × 8,859.98
  4. Step 4: Simplify right side
    12,818.48x = 170,514,084.41
  5. Step 5: Solve for x
    x = 170,514,084.41/12,818.48
  6. Step 6: Final answer
    x = 13,302.21

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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.