Home / 9,679.07-13,357.26-5,431.07

Finding the Fourth Proportional to 9,679.07, 13,357.26 and 5,431.07

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Solution

The fourth proportional to 9,679.07, 13,357.26 and 5,431.07 is: 7,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.07 : 13,357.26 = 5,431.07 : x
  2. Step 2: Convert to fraction form
    9,679.07/13,357.26 = 5,431.07/x
  3. Step 3: Cross multiply
    9,679.07x = 13,357.26 × 5,431.07
  4. Step 4: Simplify right side
    9,679.07x = 72,544,214.07
  5. Step 5: Solve for x
    x = 72,544,214.07/9,679.07
  6. Step 6: Final answer
    x = 7,494.96

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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.