Home / 8,573.40-11,817.18-5,739.80

Finding the Fourth Proportional to 8,573.40, 11,817.18 and 5,739.80

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Solution

The fourth proportional to 8,573.40, 11,817.18 and 5,739.80 is: 7,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.40 : 11,817.18 = 5,739.80 : x
  2. Step 2: Convert to fraction form
    8,573.40/11,817.18 = 5,739.80/x
  3. Step 3: Cross multiply
    8,573.40x = 11,817.18 × 5,739.80
  4. Step 4: Simplify right side
    8,573.40x = 67,828,190.68
  5. Step 5: Solve for x
    x = 67,828,190.68/8,573.40
  6. Step 6: Final answer
    x = 7,911.47

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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.