Home / 14,115.12-21,178.26-5,352.36

Finding the Fourth Proportional to 14,115.12, 21,178.26 and 5,352.36

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Solution

The fourth proportional to 14,115.12, 21,178.26 and 5,352.36 is: 8,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.12 : 21,178.26 = 5,352.36 : x
  2. Step 2: Convert to fraction form
    14,115.12/21,178.26 = 5,352.36/x
  3. Step 3: Cross multiply
    14,115.12x = 21,178.26 × 5,352.36
  4. Step 4: Simplify right side
    14,115.12x = 113,353,671.69
  5. Step 5: Solve for x
    x = 113,353,671.69/14,115.12
  6. Step 6: Final answer
    x = 8,030.66

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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.