Home / 18,411.79-27,617.84-7,876.38

Finding the Fourth Proportional to 18,411.79, 27,617.84 and 7,876.38

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Solution

The fourth proportional to 18,411.79, 27,617.84 and 7,876.38 is: 11,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.79 : 27,617.84 = 7,876.38 : x
  2. Step 2: Convert to fraction form
    18,411.79/27,617.84 = 7,876.38/x
  3. Step 3: Cross multiply
    18,411.79x = 27,617.84 × 7,876.38
  4. Step 4: Simplify right side
    18,411.79x = 217,528,602.62
  5. Step 5: Solve for x
    x = 217,528,602.62/18,411.79
  6. Step 6: Final answer
    x = 11,814.64

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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.