Home / 13,491.46-20,237.10-11,178.10

Finding the Fourth Proportional to 13,491.46, 20,237.10 and 11,178.10

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Solution

The fourth proportional to 13,491.46, 20,237.10 and 11,178.10 is: 16,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.46 : 20,237.10 = 11,178.10 : x
  2. Step 2: Convert to fraction form
    13,491.46/20,237.10 = 11,178.10/x
  3. Step 3: Cross multiply
    13,491.46x = 20,237.10 × 11,178.10
  4. Step 4: Simplify right side
    13,491.46x = 226,212,327.51
  5. Step 5: Solve for x
    x = 226,212,327.51/13,491.46
  6. Step 6: Final answer
    x = 16,767.08

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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.