Home / 20,697.49-28,562.79-11,266.03

Finding the Fourth Proportional to 20,697.49, 28,562.79 and 11,266.03

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Solution

The fourth proportional to 20,697.49, 28,562.79 and 11,266.03 is: 15,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.49 : 28,562.79 = 11,266.03 : x
  2. Step 2: Convert to fraction form
    20,697.49/28,562.79 = 11,266.03/x
  3. Step 3: Cross multiply
    20,697.49x = 28,562.79 × 11,266.03
  4. Step 4: Simplify right side
    20,697.49x = 321,789,249.02
  5. Step 5: Solve for x
    x = 321,789,249.02/20,697.49
  6. Step 6: Final answer
    x = 15,547.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.