Home / 18,934.02-28,369.64-11,516.04

Finding the Fourth Proportional to 18,934.02, 28,369.64 and 11,516.04

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Solution

The fourth proportional to 18,934.02, 28,369.64 and 11,516.04 is: 17,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.02 : 28,369.64 = 11,516.04 : x
  2. Step 2: Convert to fraction form
    18,934.02/28,369.64 = 11,516.04/x
  3. Step 3: Cross multiply
    18,934.02x = 28,369.64 × 11,516.04
  4. Step 4: Simplify right side
    18,934.02x = 326,705,937.82
  5. Step 5: Solve for x
    x = 326,705,937.82/18,934.02
  6. Step 6: Final answer
    x = 17,254.97

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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.