Home / 10,659.60-15,980.76-4,812.48

Finding the Fourth Proportional to 10,659.60, 15,980.76 and 4,812.48

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Solution

The fourth proportional to 10,659.60, 15,980.76 and 4,812.48 is: 7,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,659.60 : 15,980.76 = 4,812.48 : x
  2. Step 2: Convert to fraction form
    10,659.60/15,980.76 = 4,812.48/x
  3. Step 3: Cross multiply
    10,659.60x = 15,980.76 × 4,812.48
  4. Step 4: Simplify right side
    10,659.60x = 76,907,087.88
  5. Step 5: Solve for x
    x = 76,907,087.88/10,659.60
  6. Step 6: Final answer
    x = 7,214.82

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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.