Home / 14,479-19,981.04-8,191.24

Finding the Fourth Proportional to 14,479, 19,981.04 and 8,191.24

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Solution

The fourth proportional to 14,479, 19,981.04 and 8,191.24 is: 11,303.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479 : 19,981.04 = 8,191.24 : x
  2. Step 2: Convert to fraction form
    14,479/19,981.04 = 8,191.24/x
  3. Step 3: Cross multiply
    14,479x = 19,981.04 × 8,191.24
  4. Step 4: Simplify right side
    14,479x = 163,669,494.09
  5. Step 5: Solve for x
    x = 163,669,494.09/14,479
  6. Step 6: Final answer
    x = 11,303.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.