Home / 9,401.40-12,973.91-5,209.65

Finding the Fourth Proportional to 9,401.40, 12,973.91 and 5,209.65

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Solution

The fourth proportional to 9,401.40, 12,973.91 and 5,209.65 is: 7,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.40 : 12,973.91 = 5,209.65 : x
  2. Step 2: Convert to fraction form
    9,401.40/12,973.91 = 5,209.65/x
  3. Step 3: Cross multiply
    9,401.40x = 12,973.91 × 5,209.65
  4. Step 4: Simplify right side
    9,401.40x = 67,589,504.18
  5. Step 5: Solve for x
    x = 67,589,504.18/9,401.40
  6. Step 6: Final answer
    x = 7,189.30

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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.