Home / 12,490.36-17,228.26-9,833.15

Finding the Fourth Proportional to 12,490.36, 17,228.26 and 9,833.15

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Solution

The fourth proportional to 12,490.36, 17,228.26 and 9,833.15 is: 13,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.36 : 17,228.26 = 9,833.15 : x
  2. Step 2: Convert to fraction form
    12,490.36/17,228.26 = 9,833.15/x
  3. Step 3: Cross multiply
    12,490.36x = 17,228.26 × 9,833.15
  4. Step 4: Simplify right side
    12,490.36x = 169,408,064.82
  5. Step 5: Solve for x
    x = 169,408,064.82/12,490.36
  6. Step 6: Final answer
    x = 13,563.11

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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.