Home / 18,916.26-28,374.32-5,768.60

Finding the Fourth Proportional to 18,916.26, 28,374.32 and 5,768.60

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Solution

The fourth proportional to 18,916.26, 28,374.32 and 5,768.60 is: 8,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.26 : 28,374.32 = 5,768.60 : x
  2. Step 2: Convert to fraction form
    18,916.26/28,374.32 = 5,768.60/x
  3. Step 3: Cross multiply
    18,916.26x = 28,374.32 × 5,768.60
  4. Step 4: Simplify right side
    18,916.26x = 163,680,102.35
  5. Step 5: Solve for x
    x = 163,680,102.35/18,916.26
  6. Step 6: Final answer
    x = 8,652.88

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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.