Home / 9,720,403.38-13,404,109.23-8,348,290.38

Finding the Fourth Proportional to 9,720,403.38, 13,404,109.23 and 8,348,290.38

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Solution

The fourth proportional to 9,720,403.38, 13,404,109.23 and 8,348,290.38 is: 11,512,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720,403.38 : 13,404,109.23 = 8,348,290.38 : x
  2. Step 2: Convert to fraction form
    9,720,403.38/13,404,109.23 = 8,348,290.38/x
  3. Step 3: Cross multiply
    9,720,403.38x = 13,404,109.23 × 8,348,290.38
  4. Step 4: Simplify right side
    9,720,403.38x = 111,901,396,137,278.20
  5. Step 5: Solve for x
    x = 111,901,396,137,278.20/9,720,403.38
  6. Step 6: Final answer
    x = 11,512,011.57

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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.