Home / 18,823.56-28,199.70-12,564.70

Finding the Fourth Proportional to 18,823.56, 28,199.70 and 12,564.70

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Solution

The fourth proportional to 18,823.56, 28,199.70 and 12,564.70 is: 18,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.56 : 28,199.70 = 12,564.70 : x
  2. Step 2: Convert to fraction form
    18,823.56/28,199.70 = 12,564.70/x
  3. Step 3: Cross multiply
    18,823.56x = 28,199.70 × 12,564.70
  4. Step 4: Simplify right side
    18,823.56x = 354,320,770.59
  5. Step 5: Solve for x
    x = 354,320,770.59/18,823.56
  6. Step 6: Final answer
    x = 18,823.26

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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.