Home / 18,949.26-28,421.64-5,810.70

Finding the Fourth Proportional to 18,949.26, 28,421.64 and 5,810.70

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Solution

The fourth proportional to 18,949.26, 28,421.64 and 5,810.70 is: 8,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.26 : 28,421.64 = 5,810.70 : x
  2. Step 2: Convert to fraction form
    18,949.26/28,421.64 = 5,810.70/x
  3. Step 3: Cross multiply
    18,949.26x = 28,421.64 × 5,810.70
  4. Step 4: Simplify right side
    18,949.26x = 165,149,623.55
  5. Step 5: Solve for x
    x = 165,149,623.55/18,949.26
  6. Step 6: Final answer
    x = 8,715.36

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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.