Home / 15,267.62-21,069.25-8,553.31

Finding the Fourth Proportional to 15,267.62, 21,069.25 and 8,553.31

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Solution

The fourth proportional to 15,267.62, 21,069.25 and 8,553.31 is: 11,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.62 : 21,069.25 = 8,553.31 : x
  2. Step 2: Convert to fraction form
    15,267.62/21,069.25 = 8,553.31/x
  3. Step 3: Cross multiply
    15,267.62x = 21,069.25 × 8,553.31
  4. Step 4: Simplify right side
    15,267.62x = 180,211,678.60
  5. Step 5: Solve for x
    x = 180,211,678.60/15,267.62
  6. Step 6: Final answer
    x = 11,803.52

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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.