Home / 12,623.31-17,410.55-9,648.99

Finding the Fourth Proportional to 12,623.31, 17,410.55 and 9,648.99

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Solution

The fourth proportional to 12,623.31, 17,410.55 and 9,648.99 is: 13,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.31 : 17,410.55 = 9,648.99 : x
  2. Step 2: Convert to fraction form
    12,623.31/17,410.55 = 9,648.99/x
  3. Step 3: Cross multiply
    12,623.31x = 17,410.55 × 9,648.99
  4. Step 4: Simplify right side
    12,623.31x = 167,994,174.60
  5. Step 5: Solve for x
    x = 167,994,174.60/12,623.31
  6. Step 6: Final answer
    x = 13,308.25

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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.