Home / 13,251.39-19,826.72-8,167.36

Finding the Fourth Proportional to 13,251.39, 19,826.72 and 8,167.36

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Solution

The fourth proportional to 13,251.39, 19,826.72 and 8,167.36 is: 12,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.39 : 19,826.72 = 8,167.36 : x
  2. Step 2: Convert to fraction form
    13,251.39/19,826.72 = 8,167.36/x
  3. Step 3: Cross multiply
    13,251.39x = 19,826.72 × 8,167.36
  4. Step 4: Simplify right side
    13,251.39x = 161,931,919.02
  5. Step 5: Solve for x
    x = 161,931,919.02/13,251.39
  6. Step 6: Final answer
    x = 12,219.99

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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.