Home / 14,783.66-20,401.64-8,818.77

Finding the Fourth Proportional to 14,783.66, 20,401.64 and 8,818.77

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Solution

The fourth proportional to 14,783.66, 20,401.64 and 8,818.77 is: 12,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.66 : 20,401.64 = 8,818.77 : x
  2. Step 2: Convert to fraction form
    14,783.66/20,401.64 = 8,818.77/x
  3. Step 3: Cross multiply
    14,783.66x = 20,401.64 × 8,818.77
  4. Step 4: Simplify right side
    14,783.66x = 179,917,326.69
  5. Step 5: Solve for x
    x = 179,917,326.69/14,783.66
  6. Step 6: Final answer
    x = 12,170.02

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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.