Home / 12,013.26-18,019.68-5,434.85

Finding the Fourth Proportional to 12,013.26, 18,019.68 and 5,434.85

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Solution

The fourth proportional to 12,013.26, 18,019.68 and 5,434.85 is: 8,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.26 : 18,019.68 = 5,434.85 : x
  2. Step 2: Convert to fraction form
    12,013.26/18,019.68 = 5,434.85/x
  3. Step 3: Cross multiply
    12,013.26x = 18,019.68 × 5,434.85
  4. Step 4: Simplify right side
    12,013.26x = 97,934,167.75
  5. Step 5: Solve for x
    x = 97,934,167.75/12,013.26
  6. Step 6: Final answer
    x = 8,152.17

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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.