Home / 9,581.45-13,224.23-5,389.70

Finding the Fourth Proportional to 9,581.45, 13,224.23 and 5,389.70

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Solution

The fourth proportional to 9,581.45, 13,224.23 and 5,389.70 is: 7,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.45 : 13,224.23 = 5,389.70 : x
  2. Step 2: Convert to fraction form
    9,581.45/13,224.23 = 5,389.70/x
  3. Step 3: Cross multiply
    9,581.45x = 13,224.23 × 5,389.70
  4. Step 4: Simplify right side
    9,581.45x = 71,274,559.57
  5. Step 5: Solve for x
    x = 71,274,559.57/9,581.45
  6. Step 6: Final answer
    x = 7,438.81

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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.