Home / 9,381.03-12,945.29-5,131.24

Finding the Fourth Proportional to 9,381.03, 12,945.29 and 5,131.24

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Solution

The fourth proportional to 9,381.03, 12,945.29 and 5,131.24 is: 7,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.03 : 12,945.29 = 5,131.24 : x
  2. Step 2: Convert to fraction form
    9,381.03/12,945.29 = 5,131.24/x
  3. Step 3: Cross multiply
    9,381.03x = 12,945.29 × 5,131.24
  4. Step 4: Simplify right side
    9,381.03x = 66,425,389.86
  5. Step 5: Solve for x
    x = 66,425,389.86/9,381.03
  6. Step 6: Final answer
    x = 7,080.82

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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.