Home / 13,271.10-19,906.65-8,346.30

Finding the Fourth Proportional to 13,271.10, 19,906.65 and 8,346.30

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Solution

The fourth proportional to 13,271.10, 19,906.65 and 8,346.30 is: 12,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.10 : 19,906.65 = 8,346.30 : x
  2. Step 2: Convert to fraction form
    13,271.10/19,906.65 = 8,346.30/x
  3. Step 3: Cross multiply
    13,271.10x = 19,906.65 × 8,346.30
  4. Step 4: Simplify right side
    13,271.10x = 166,146,872.90
  5. Step 5: Solve for x
    x = 166,146,872.90/13,271.10
  6. Step 6: Final answer
    x = 12,519.45

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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.