Home / 18,733.56-28,114.21-8,872.87

Finding the Fourth Proportional to 18,733.56, 28,114.21 and 8,872.87

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Solution

The fourth proportional to 18,733.56, 28,114.21 and 8,872.87 is: 13,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.56 : 28,114.21 = 8,872.87 : x
  2. Step 2: Convert to fraction form
    18,733.56/28,114.21 = 8,872.87/x
  3. Step 3: Cross multiply
    18,733.56x = 28,114.21 × 8,872.87
  4. Step 4: Simplify right side
    18,733.56x = 249,453,730.48
  5. Step 5: Solve for x
    x = 249,453,730.48/18,733.56
  6. Step 6: Final answer
    x = 13,315.87

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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.