Home / 7,971.30-11,009.56-5,314.08

Finding the Fourth Proportional to 7,971.30, 11,009.56 and 5,314.08

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Solution

The fourth proportional to 7,971.30, 11,009.56 and 5,314.08 is: 7,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.30 : 11,009.56 = 5,314.08 : x
  2. Step 2: Convert to fraction form
    7,971.30/11,009.56 = 5,314.08/x
  3. Step 3: Cross multiply
    7,971.30x = 11,009.56 × 5,314.08
  4. Step 4: Simplify right side
    7,971.30x = 58,505,682.60
  5. Step 5: Solve for x
    x = 58,505,682.60/7,971.30
  6. Step 6: Final answer
    x = 7,339.54

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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.