Home / 13,776.63-20,666.88-4,414.45

Finding the Fourth Proportional to 13,776.63, 20,666.88 and 4,414.45

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Solution

The fourth proportional to 13,776.63, 20,666.88 and 4,414.45 is: 6,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.63 : 20,666.88 = 4,414.45 : x
  2. Step 2: Convert to fraction form
    13,776.63/20,666.88 = 4,414.45/x
  3. Step 3: Cross multiply
    13,776.63x = 20,666.88 × 4,414.45
  4. Step 4: Simplify right side
    13,776.63x = 91,232,908.42
  5. Step 5: Solve for x
    x = 91,232,908.42/13,776.63
  6. Step 6: Final answer
    x = 6,622.30

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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.