Home / 10,386.58-15,577.70-2,991.56

Finding the Fourth Proportional to 10,386.58, 15,577.70 and 2,991.56

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Solution

The fourth proportional to 10,386.58, 15,577.70 and 2,991.56 is: 4,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.58 : 15,577.70 = 2,991.56 : x
  2. Step 2: Convert to fraction form
    10,386.58/15,577.70 = 2,991.56/x
  3. Step 3: Cross multiply
    10,386.58x = 15,577.70 × 2,991.56
  4. Step 4: Simplify right side
    10,386.58x = 46,601,624.21
  5. Step 5: Solve for x
    x = 46,601,624.21/10,386.58
  6. Step 6: Final answer
    x = 4,486.71

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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.