Home / 18,884.02-28,331.49-8,353.63

Finding the Fourth Proportional to 18,884.02, 28,331.49 and 8,353.63

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Solution

The fourth proportional to 18,884.02, 28,331.49 and 8,353.63 is: 12,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.02 : 28,331.49 = 8,353.63 : x
  2. Step 2: Convert to fraction form
    18,884.02/28,331.49 = 8,353.63/x
  3. Step 3: Cross multiply
    18,884.02x = 28,331.49 × 8,353.63
  4. Step 4: Simplify right side
    18,884.02x = 236,670,784.81
  5. Step 5: Solve for x
    x = 236,670,784.81/18,884.02
  6. Step 6: Final answer
    x = 12,532.86

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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.