Home / 18,818.85-28,208.54-6,334.56

Finding the Fourth Proportional to 18,818.85, 28,208.54 and 6,334.56

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Solution

The fourth proportional to 18,818.85, 28,208.54 and 6,334.56 is: 9,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.85 : 28,208.54 = 6,334.56 : x
  2. Step 2: Convert to fraction form
    18,818.85/28,208.54 = 6,334.56/x
  3. Step 3: Cross multiply
    18,818.85x = 28,208.54 × 6,334.56
  4. Step 4: Simplify right side
    18,818.85x = 178,688,657.47
  5. Step 5: Solve for x
    x = 178,688,657.47/18,818.85
  6. Step 6: Final answer
    x = 9,495.20

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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.