Home / 7,931.60-11,902.78-4,236.48

Finding the Fourth Proportional to 7,931.60, 11,902.78 and 4,236.48

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Solution

The fourth proportional to 7,931.60, 11,902.78 and 4,236.48 is: 6,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.60 : 11,902.78 = 4,236.48 : x
  2. Step 2: Convert to fraction form
    7,931.60/11,902.78 = 4,236.48/x
  3. Step 3: Cross multiply
    7,931.60x = 11,902.78 × 4,236.48
  4. Step 4: Simplify right side
    7,931.60x = 50,425,894.71
  5. Step 5: Solve for x
    x = 50,425,894.71/7,931.60
  6. Step 6: Final answer
    x = 6,357.60

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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.