Home / 9,581.28-13,222.08-5,389.44

Finding the Fourth Proportional to 9,581.28, 13,222.08 and 5,389.44

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Solution

The fourth proportional to 9,581.28, 13,222.08 and 5,389.44 is: 7,437.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.28 : 13,222.08 = 5,389.44 : x
  2. Step 2: Convert to fraction form
    9,581.28/13,222.08 = 5,389.44/x
  3. Step 3: Cross multiply
    9,581.28x = 13,222.08 × 5,389.44
  4. Step 4: Simplify right side
    9,581.28x = 71,259,606.84
  5. Step 5: Solve for x
    x = 71,259,606.84/9,581.28
  6. Step 6: Final answer
    x = 7,437.38

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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.