Home / 15,267.82-21,069.42-8,553.40

Finding the Fourth Proportional to 15,267.82, 21,069.42 and 8,553.40

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Solution

The fourth proportional to 15,267.82, 21,069.42 and 8,553.40 is: 11,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.82 : 21,069.42 = 8,553.40 : x
  2. Step 2: Convert to fraction form
    15,267.82/21,069.42 = 8,553.40/x
  3. Step 3: Cross multiply
    15,267.82x = 21,069.42 × 8,553.40
  4. Step 4: Simplify right side
    15,267.82x = 180,215,177.03
  5. Step 5: Solve for x
    x = 180,215,177.03/15,267.82
  6. Step 6: Final answer
    x = 11,803.60

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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.