Home / 9,239.36-12,747.15-5,259.49

Finding the Fourth Proportional to 9,239.36, 12,747.15 and 5,259.49

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Solution

The fourth proportional to 9,239.36, 12,747.15 and 5,259.49 is: 7,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.36 : 12,747.15 = 5,259.49 : x
  2. Step 2: Convert to fraction form
    9,239.36/12,747.15 = 5,259.49/x
  3. Step 3: Cross multiply
    9,239.36x = 12,747.15 × 5,259.49
  4. Step 4: Simplify right side
    9,239.36x = 67,043,476.09
  5. Step 5: Solve for x
    x = 67,043,476.09/9,239.36
  6. Step 6: Final answer
    x = 7,256.29

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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.