Home / 9,017.21-12,443.38-5,240.35

Finding the Fourth Proportional to 9,017.21, 12,443.38 and 5,240.35

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Solution

The fourth proportional to 9,017.21, 12,443.38 and 5,240.35 is: 7,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.21 : 12,443.38 = 5,240.35 : x
  2. Step 2: Convert to fraction form
    9,017.21/12,443.38 = 5,240.35/x
  3. Step 3: Cross multiply
    9,017.21x = 12,443.38 × 5,240.35
  4. Step 4: Simplify right side
    9,017.21x = 65,207,591.47
  5. Step 5: Solve for x
    x = 65,207,591.47/9,017.21
  6. Step 6: Final answer
    x = 7,231.46

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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.