Home / 6,141.60-9,212.40-5,104.80

Finding the Fourth Proportional to 6,141.60, 9,212.40 and 5,104.80

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Solution

The fourth proportional to 6,141.60, 9,212.40 and 5,104.80 is: 7,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.60 : 9,212.40 = 5,104.80 : x
  2. Step 2: Convert to fraction form
    6,141.60/9,212.40 = 5,104.80/x
  3. Step 3: Cross multiply
    6,141.60x = 9,212.40 × 5,104.80
  4. Step 4: Simplify right side
    6,141.60x = 47,027,459.52
  5. Step 5: Solve for x
    x = 47,027,459.52/6,141.60
  6. Step 6: Final answer
    x = 7,657.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.