Home / 15,400.49-21,257.96-9,029.12

Finding the Fourth Proportional to 15,400.49, 21,257.96 and 9,029.12

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Solution

The fourth proportional to 15,400.49, 21,257.96 and 9,029.12 is: 12,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.49 : 21,257.96 = 9,029.12 : x
  2. Step 2: Convert to fraction form
    15,400.49/21,257.96 = 9,029.12/x
  3. Step 3: Cross multiply
    15,400.49x = 21,257.96 × 9,029.12
  4. Step 4: Simplify right side
    15,400.49x = 191,940,520.36
  5. Step 5: Solve for x
    x = 191,940,520.36/15,400.49
  6. Step 6: Final answer
    x = 12,463.28

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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.