Home / 9,420.41-13,000.32-5,171.87

Finding the Fourth Proportional to 9,420.41, 13,000.32 and 5,171.87

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Solution

The fourth proportional to 9,420.41, 13,000.32 and 5,171.87 is: 7,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.41 : 13,000.32 = 5,171.87 : x
  2. Step 2: Convert to fraction form
    9,420.41/13,000.32 = 5,171.87/x
  3. Step 3: Cross multiply
    9,420.41x = 13,000.32 × 5,171.87
  4. Step 4: Simplify right side
    9,420.41x = 67,235,965.00
  5. Step 5: Solve for x
    x = 67,235,965.00/9,420.41
  6. Step 6: Final answer
    x = 7,137.27

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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.