Home / 10,818.56-16,220.32-4,245.40

Finding the Fourth Proportional to 10,818.56, 16,220.32 and 4,245.40

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Solution

The fourth proportional to 10,818.56, 16,220.32 and 4,245.40 is: 6,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.56 : 16,220.32 = 4,245.40 : x
  2. Step 2: Convert to fraction form
    10,818.56/16,220.32 = 4,245.40/x
  3. Step 3: Cross multiply
    10,818.56x = 16,220.32 × 4,245.40
  4. Step 4: Simplify right side
    10,818.56x = 68,861,746.53
  5. Step 5: Solve for x
    x = 68,861,746.53/10,818.56
  6. Step 6: Final answer
    x = 6,365.15

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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.