Home / 13,800.76-19,042.42-8,765.80

Finding the Fourth Proportional to 13,800.76, 19,042.42 and 8,765.80

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Solution

The fourth proportional to 13,800.76, 19,042.42 and 8,765.80 is: 12,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.76 : 19,042.42 = 8,765.80 : x
  2. Step 2: Convert to fraction form
    13,800.76/19,042.42 = 8,765.80/x
  3. Step 3: Cross multiply
    13,800.76x = 19,042.42 × 8,765.80
  4. Step 4: Simplify right side
    13,800.76x = 166,922,045.24
  5. Step 5: Solve for x
    x = 166,922,045.24/13,800.76
  6. Step 6: Final answer
    x = 12,095.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.