Home / 10,437.05-15,655.68-2,645.87

Finding the Fourth Proportional to 10,437.05, 15,655.68 and 2,645.87

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Solution

The fourth proportional to 10,437.05, 15,655.68 and 2,645.87 is: 3,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,437.05 : 15,655.68 = 2,645.87 : x
  2. Step 2: Convert to fraction form
    10,437.05/15,655.68 = 2,645.87/x
  3. Step 3: Cross multiply
    10,437.05x = 15,655.68 × 2,645.87
  4. Step 4: Simplify right side
    10,437.05x = 41,422,815.76
  5. Step 5: Solve for x
    x = 41,422,815.76/10,437.05
  6. Step 6: Final answer
    x = 3,968.82

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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.