Home / 13,904.78-20,859.20-4,042.77

Finding the Fourth Proportional to 13,904.78, 20,859.20 and 4,042.77

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Solution

The fourth proportional to 13,904.78, 20,859.20 and 4,042.77 is: 6,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.78 : 20,859.20 = 4,042.77 : x
  2. Step 2: Convert to fraction form
    13,904.78/20,859.20 = 4,042.77/x
  3. Step 3: Cross multiply
    13,904.78x = 20,859.20 × 4,042.77
  4. Step 4: Simplify right side
    13,904.78x = 84,328,927.77
  5. Step 5: Solve for x
    x = 84,328,927.77/13,904.78
  6. Step 6: Final answer
    x = 6,064.75

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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.