Home / 11,420.26-17,139.06-4,851.06

Finding the Fourth Proportional to 11,420.26, 17,139.06 and 4,851.06

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Solution

The fourth proportional to 11,420.26, 17,139.06 and 4,851.06 is: 7,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.26 : 17,139.06 = 4,851.06 : x
  2. Step 2: Convert to fraction form
    11,420.26/17,139.06 = 4,851.06/x
  3. Step 3: Cross multiply
    11,420.26x = 17,139.06 × 4,851.06
  4. Step 4: Simplify right side
    11,420.26x = 83,142,608.40
  5. Step 5: Solve for x
    x = 83,142,608.40/11,420.26
  6. Step 6: Final answer
    x = 7,280.27

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1.5x scale

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.