Home / 10,390.97-15,591.56-4,837.68

Finding the Fourth Proportional to 10,390.97, 15,591.56 and 4,837.68

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Solution

The fourth proportional to 10,390.97, 15,591.56 and 4,837.68 is: 7,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.97 : 15,591.56 = 4,837.68 : x
  2. Step 2: Convert to fraction form
    10,390.97/15,591.56 = 4,837.68/x
  3. Step 3: Cross multiply
    10,390.97x = 15,591.56 × 4,837.68
  4. Step 4: Simplify right side
    10,390.97x = 75,426,953.79
  5. Step 5: Solve for x
    x = 75,426,953.79/10,390.97
  6. Step 6: Final answer
    x = 7,258.89

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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.