Home / 10,430.64-15,645.56-3,505.14

Finding the Fourth Proportional to 10,430.64, 15,645.56 and 3,505.14

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Solution

The fourth proportional to 10,430.64, 15,645.56 and 3,505.14 is: 5,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.64 : 15,645.56 = 3,505.14 : x
  2. Step 2: Convert to fraction form
    10,430.64/15,645.56 = 3,505.14/x
  3. Step 3: Cross multiply
    10,430.64x = 15,645.56 × 3,505.14
  4. Step 4: Simplify right side
    10,430.64x = 54,839,860.65
  5. Step 5: Solve for x
    x = 54,839,860.65/10,430.64
  6. Step 6: Final answer
    x = 5,257.57

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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.