Home / 18,864.57-28,296.83-5,013.57

Finding the Fourth Proportional to 18,864.57, 28,296.83 and 5,013.57

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Solution

The fourth proportional to 18,864.57, 28,296.83 and 5,013.57 is: 7,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.57 : 28,296.83 = 5,013.57 : x
  2. Step 2: Convert to fraction form
    18,864.57/28,296.83 = 5,013.57/x
  3. Step 3: Cross multiply
    18,864.57x = 28,296.83 × 5,013.57
  4. Step 4: Simplify right side
    18,864.57x = 141,868,112.92
  5. Step 5: Solve for x
    x = 141,868,112.92/18,864.57
  6. Step 6: Final answer
    x = 7,520.35

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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.