Home / 13,387.91-18,466.65-10,550.88

Finding the Fourth Proportional to 13,387.91, 18,466.65 and 10,550.88

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Solution

The fourth proportional to 13,387.91, 18,466.65 and 10,550.88 is: 14,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.91 : 18,466.65 = 10,550.88 : x
  2. Step 2: Convert to fraction form
    13,387.91/18,466.65 = 10,550.88/x
  3. Step 3: Cross multiply
    13,387.91x = 18,466.65 × 10,550.88
  4. Step 4: Simplify right side
    13,387.91x = 194,839,408.15
  5. Step 5: Solve for x
    x = 194,839,408.15/13,387.91
  6. Step 6: Final answer
    x = 14,553.39

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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.