Home / 9,140.12-13,707.38-4,755.20

Finding the Fourth Proportional to 9,140.12, 13,707.38 and 4,755.20

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Solution

The fourth proportional to 9,140.12, 13,707.38 and 4,755.20 is: 7,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.12 : 13,707.38 = 4,755.20 : x
  2. Step 2: Convert to fraction form
    9,140.12/13,707.38 = 4,755.20/x
  3. Step 3: Cross multiply
    9,140.12x = 13,707.38 × 4,755.20
  4. Step 4: Simplify right side
    9,140.12x = 65,181,333.38
  5. Step 5: Solve for x
    x = 65,181,333.38/9,140.12
  6. Step 6: Final answer
    x = 7,131.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.