Home / 13,313.12-19,964.64-4,426.80

Finding the Fourth Proportional to 13,313.12, 19,964.64 and 4,426.80

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Solution

The fourth proportional to 13,313.12, 19,964.64 and 4,426.80 is: 6,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.12 : 19,964.64 = 4,426.80 : x
  2. Step 2: Convert to fraction form
    13,313.12/19,964.64 = 4,426.80/x
  3. Step 3: Cross multiply
    13,313.12x = 19,964.64 × 4,426.80
  4. Step 4: Simplify right side
    13,313.12x = 88,379,468.35
  5. Step 5: Solve for x
    x = 88,379,468.35/13,313.12
  6. Step 6: Final answer
    x = 6,638.52

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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.