Home / 18,746.76-28,123.90-8,358.50

Finding the Fourth Proportional to 18,746.76, 28,123.90 and 8,358.50

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Solution

The fourth proportional to 18,746.76, 28,123.90 and 8,358.50 is: 12,539.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.76 : 28,123.90 = 8,358.50 : x
  2. Step 2: Convert to fraction form
    18,746.76/28,123.90 = 8,358.50/x
  3. Step 3: Cross multiply
    18,746.76x = 28,123.90 × 8,358.50
  4. Step 4: Simplify right side
    18,746.76x = 235,073,618.15
  5. Step 5: Solve for x
    x = 235,073,618.15/18,746.76
  6. Step 6: Final answer
    x = 12,539.43

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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.