Home / 12,834.99-19,244.18-8,439.12

Finding the Fourth Proportional to 12,834.99, 19,244.18 and 8,439.12

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Solution

The fourth proportional to 12,834.99, 19,244.18 and 8,439.12 is: 12,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.99 : 19,244.18 = 8,439.12 : x
  2. Step 2: Convert to fraction form
    12,834.99/19,244.18 = 8,439.12/x
  3. Step 3: Cross multiply
    12,834.99x = 19,244.18 × 8,439.12
  4. Step 4: Simplify right side
    12,834.99x = 162,403,965.42
  5. Step 5: Solve for x
    x = 162,403,965.42/12,834.99
  6. Step 6: Final answer
    x = 12,653.22

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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.