Home / 15,553.62-21,466.62-9,267.21

Finding the Fourth Proportional to 15,553.62, 21,466.62 and 9,267.21

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Solution

The fourth proportional to 15,553.62, 21,466.62 and 9,267.21 is: 12,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.62 : 21,466.62 = 9,267.21 : x
  2. Step 2: Convert to fraction form
    15,553.62/21,466.62 = 9,267.21/x
  3. Step 3: Cross multiply
    15,553.62x = 21,466.62 × 9,267.21
  4. Step 4: Simplify right side
    15,553.62x = 198,935,675.53
  5. Step 5: Solve for x
    x = 198,935,675.53/15,553.62
  6. Step 6: Final answer
    x = 12,790.31

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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.