Home / 13,335.38-18,389.04-11,453.22

Finding the Fourth Proportional to 13,335.38, 18,389.04 and 11,453.22

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Solution

The fourth proportional to 13,335.38, 18,389.04 and 11,453.22 is: 15,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.38 : 18,389.04 = 11,453.22 : x
  2. Step 2: Convert to fraction form
    13,335.38/18,389.04 = 11,453.22/x
  3. Step 3: Cross multiply
    13,335.38x = 18,389.04 × 11,453.22
  4. Step 4: Simplify right side
    13,335.38x = 210,613,720.71
  5. Step 5: Solve for x
    x = 210,613,720.71/13,335.38
  6. Step 6: Final answer
    x = 15,793.60

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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.