Home / 13,370.76-18,453.69-8,335.80

Finding the Fourth Proportional to 13,370.76, 18,453.69 and 8,335.80

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Solution

The fourth proportional to 13,370.76, 18,453.69 and 8,335.80 is: 11,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.76 : 18,453.69 = 8,335.80 : x
  2. Step 2: Convert to fraction form
    13,370.76/18,453.69 = 8,335.80/x
  3. Step 3: Cross multiply
    13,370.76x = 18,453.69 × 8,335.80
  4. Step 4: Simplify right side
    13,370.76x = 153,826,269.10
  5. Step 5: Solve for x
    x = 153,826,269.10/13,370.76
  6. Step 6: Final answer
    x = 11,504.68

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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.