Home / 9,679.32-13,357.44-5,487.60

Finding the Fourth Proportional to 9,679.32, 13,357.44 and 5,487.60

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Solution

The fourth proportional to 9,679.32, 13,357.44 and 5,487.60 is: 7,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.32 : 13,357.44 = 5,487.60 : x
  2. Step 2: Convert to fraction form
    9,679.32/13,357.44 = 5,487.60/x
  3. Step 3: Cross multiply
    9,679.32x = 13,357.44 × 5,487.60
  4. Step 4: Simplify right side
    9,679.32x = 73,300,287.74
  5. Step 5: Solve for x
    x = 73,300,287.74/9,679.32
  6. Step 6: Final answer
    x = 7,572.88

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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.