Home / 9,421.01-13,000.94-5,171.96

Finding the Fourth Proportional to 9,421.01, 13,000.94 and 5,171.96

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Solution

The fourth proportional to 9,421.01, 13,000.94 and 5,171.96 is: 7,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.01 : 13,000.94 = 5,171.96 : x
  2. Step 2: Convert to fraction form
    9,421.01/13,000.94 = 5,171.96/x
  3. Step 3: Cross multiply
    9,421.01x = 13,000.94 × 5,171.96
  4. Step 4: Simplify right side
    9,421.01x = 67,240,289.57
  5. Step 5: Solve for x
    x = 67,240,289.57/9,421.01
  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.