Home / 18,772.48-28,159.66-5,623.60

Finding the Fourth Proportional to 18,772.48, 28,159.66 and 5,623.60

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Solution

The fourth proportional to 18,772.48, 28,159.66 and 5,623.60 is: 8,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.48 : 28,159.66 = 5,623.60 : x
  2. Step 2: Convert to fraction form
    18,772.48/28,159.66 = 5,623.60/x
  3. Step 3: Cross multiply
    18,772.48x = 28,159.66 × 5,623.60
  4. Step 4: Simplify right side
    18,772.48x = 158,358,635.86
  5. Step 5: Solve for x
    x = 158,358,635.86/18,772.48
  6. Step 6: Final answer
    x = 8,435.68

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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.