Home / 18,733.31-28,113.83-8,872.62

Finding the Fourth Proportional to 18,733.31, 28,113.83 and 8,872.62

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Solution

The fourth proportional to 18,733.31, 28,113.83 and 8,872.62 is: 13,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.31 : 28,113.83 = 8,872.62 : x
  2. Step 2: Convert to fraction form
    18,733.31/28,113.83 = 8,872.62/x
  3. Step 3: Cross multiply
    18,733.31x = 28,113.83 × 8,872.62
  4. Step 4: Simplify right side
    18,733.31x = 249,443,352.52
  5. Step 5: Solve for x
    x = 249,443,352.52/18,733.31
  6. Step 6: Final answer
    x = 13,315.50

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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.