Home / 15,266.26-21,066.78-8,551.90

Finding the Fourth Proportional to 15,266.26, 21,066.78 and 8,551.90

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Solution

The fourth proportional to 15,266.26, 21,066.78 and 8,551.90 is: 11,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.26 : 21,066.78 = 8,551.90 : x
  2. Step 2: Convert to fraction form
    15,266.26/21,066.78 = 8,551.90/x
  3. Step 3: Cross multiply
    15,266.26x = 21,066.78 × 8,551.90
  4. Step 4: Simplify right side
    15,266.26x = 180,160,995.88
  5. Step 5: Solve for x
    x = 180,160,995.88/15,266.26
  6. Step 6: Final answer
    x = 11,801.25

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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.