Home / 9,408.45-12,983.37-5,159.29

Finding the Fourth Proportional to 9,408.45, 12,983.37 and 5,159.29

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Solution

The fourth proportional to 9,408.45, 12,983.37 and 5,159.29 is: 7,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.45 : 12,983.37 = 5,159.29 : x
  2. Step 2: Convert to fraction form
    9,408.45/12,983.37 = 5,159.29/x
  3. Step 3: Cross multiply
    9,408.45x = 12,983.37 × 5,159.29
  4. Step 4: Simplify right side
    9,408.45x = 66,984,971.01
  5. Step 5: Solve for x
    x = 66,984,971.01/9,408.45
  6. Step 6: Final answer
    x = 7,119.66

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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.