Home / 13,507.28-18,658.01-12,249.62

Finding the Fourth Proportional to 13,507.28, 18,658.01 and 12,249.62

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Solution

The fourth proportional to 13,507.28, 18,658.01 and 12,249.62 is: 16,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.28 : 18,658.01 = 12,249.62 : x
  2. Step 2: Convert to fraction form
    13,507.28/18,658.01 = 12,249.62/x
  3. Step 3: Cross multiply
    13,507.28x = 18,658.01 × 12,249.62
  4. Step 4: Simplify right side
    13,507.28x = 228,553,532.46
  5. Step 5: Solve for x
    x = 228,553,532.46/13,507.28
  6. Step 6: Final answer
    x = 16,920.77

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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.