Home / 10,455.40-15,685.35-3,059.29

Finding the Fourth Proportional to 10,455.40, 15,685.35 and 3,059.29

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Solution

The fourth proportional to 10,455.40, 15,685.35 and 3,059.29 is: 4,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.40 : 15,685.35 = 3,059.29 : x
  2. Step 2: Convert to fraction form
    10,455.40/15,685.35 = 3,059.29/x
  3. Step 3: Cross multiply
    10,455.40x = 15,685.35 × 3,059.29
  4. Step 4: Simplify right side
    10,455.40x = 47,986,034.40
  5. Step 5: Solve for x
    x = 47,986,034.40/10,455.40
  6. Step 6: Final answer
    x = 4,589.59

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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.