Home / 10,378.26-15,564.96-2,981.34

Finding the Fourth Proportional to 10,378.26, 15,564.96 and 2,981.34

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Solution

The fourth proportional to 10,378.26, 15,564.96 and 2,981.34 is: 4,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.26 : 15,564.96 = 2,981.34 : x
  2. Step 2: Convert to fraction form
    10,378.26/15,564.96 = 2,981.34/x
  3. Step 3: Cross multiply
    10,378.26x = 15,564.96 × 2,981.34
  4. Step 4: Simplify right side
    10,378.26x = 46,404,437.85
  5. Step 5: Solve for x
    x = 46,404,437.85/10,378.26
  6. Step 6: Final answer
    x = 4,471.31

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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.