Home / 13,321.04-19,958.34-8,645.72

Finding the Fourth Proportional to 13,321.04, 19,958.34 and 8,645.72

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Solution

The fourth proportional to 13,321.04, 19,958.34 and 8,645.72 is: 12,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.04 : 19,958.34 = 8,645.72 : x
  2. Step 2: Convert to fraction form
    13,321.04/19,958.34 = 8,645.72/x
  3. Step 3: Cross multiply
    13,321.04x = 19,958.34 × 8,645.72
  4. Step 4: Simplify right side
    13,321.04x = 172,554,219.30
  5. Step 5: Solve for x
    x = 172,554,219.30/13,321.04
  6. Step 6: Final answer
    x = 12,953.51

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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.