Home / 10,257.20-15,371.40-5,051.60

Finding the Fourth Proportional to 10,257.20, 15,371.40 and 5,051.60

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Solution

The fourth proportional to 10,257.20, 15,371.40 and 5,051.60 is: 7,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.20 : 15,371.40 = 5,051.60 : x
  2. Step 2: Convert to fraction form
    10,257.20/15,371.40 = 5,051.60/x
  3. Step 3: Cross multiply
    10,257.20x = 15,371.40 × 5,051.60
  4. Step 4: Simplify right side
    10,257.20x = 77,650,164.24
  5. Step 5: Solve for x
    x = 77,650,164.24/10,257.20
  6. Step 6: Final answer
    x = 7,570.31

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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.