Home / 13,335.38-18,402.96-9,308.06

Finding the Fourth Proportional to 13,335.38, 18,402.96 and 9,308.06

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Solution

The fourth proportional to 13,335.38, 18,402.96 and 9,308.06 is: 12,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.38 : 18,402.96 = 9,308.06 : x
  2. Step 2: Convert to fraction form
    13,335.38/18,402.96 = 9,308.06/x
  3. Step 3: Cross multiply
    13,335.38x = 18,402.96 × 9,308.06
  4. Step 4: Simplify right side
    13,335.38x = 171,295,855.86
  5. Step 5: Solve for x
    x = 171,295,855.86/13,335.38
  6. Step 6: Final answer
    x = 12,845.22

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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.