Home / 13,323.42-19,994.22-8,631.72

Finding the Fourth Proportional to 13,323.42, 19,994.22 and 8,631.72

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Solution

The fourth proportional to 13,323.42, 19,994.22 and 8,631.72 is: 12,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.42 : 19,994.22 = 8,631.72 : x
  2. Step 2: Convert to fraction form
    13,323.42/19,994.22 = 8,631.72/x
  3. Step 3: Cross multiply
    13,323.42x = 19,994.22 × 8,631.72
  4. Step 4: Simplify right side
    13,323.42x = 172,584,508.66
  5. Step 5: Solve for x
    x = 172,584,508.66/13,323.42
  6. Step 6: Final answer
    x = 12,953.47

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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.