Home / 9,581.00-13,221.78-5,389.25

Finding the Fourth Proportional to 9,581.00, 13,221.78 and 5,389.25

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Solution

The fourth proportional to 9,581.00, 13,221.78 and 5,389.25 is: 7,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.00 : 13,221.78 = 5,389.25 : x
  2. Step 2: Convert to fraction form
    9,581.00/13,221.78 = 5,389.25/x
  3. Step 3: Cross multiply
    9,581.00x = 13,221.78 × 5,389.25
  4. Step 4: Simplify right side
    9,581.00x = 71,255,441.13
  5. Step 5: Solve for x
    x = 71,255,441.13/9,581.00
  6. Step 6: Final answer
    x = 7,437.16

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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.