Home / 19,143.72-28,715.58-5,816.82

Finding the Fourth Proportional to 19,143.72, 28,715.58 and 5,816.82

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Solution

The fourth proportional to 19,143.72, 28,715.58 and 5,816.82 is: 8,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.72 : 28,715.58 = 5,816.82 : x
  2. Step 2: Convert to fraction form
    19,143.72/28,715.58 = 5,816.82/x
  3. Step 3: Cross multiply
    19,143.72x = 28,715.58 × 5,816.82
  4. Step 4: Simplify right side
    19,143.72x = 167,033,360.06
  5. Step 5: Solve for x
    x = 167,033,360.06/19,143.72
  6. Step 6: Final answer
    x = 8,725.23

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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.