Home / 13,572.27-18,738.87-8,475.57

Finding the Fourth Proportional to 13,572.27, 18,738.87 and 8,475.57

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Solution

The fourth proportional to 13,572.27, 18,738.87 and 8,475.57 is: 11,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.27 : 18,738.87 = 8,475.57 : x
  2. Step 2: Convert to fraction form
    13,572.27/18,738.87 = 8,475.57/x
  3. Step 3: Cross multiply
    13,572.27x = 18,738.87 × 8,475.57
  4. Step 4: Simplify right side
    13,572.27x = 158,822,604.41
  5. Step 5: Solve for x
    x = 158,822,604.41/13,572.27
  6. Step 6: Final answer
    x = 11,701.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.