Home / 13,308.18-18,365.99-9,327.84

Finding the Fourth Proportional to 13,308.18, 18,365.99 and 9,327.84

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Solution

The fourth proportional to 13,308.18, 18,365.99 and 9,327.84 is: 12,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.18 : 18,365.99 = 9,327.84 : x
  2. Step 2: Convert to fraction form
    13,308.18/18,365.99 = 9,327.84/x
  3. Step 3: Cross multiply
    13,308.18x = 18,365.99 × 9,327.84
  4. Step 4: Simplify right side
    13,308.18x = 171,315,016.16
  5. Step 5: Solve for x
    x = 171,315,016.16/13,308.18
  6. Step 6: Final answer
    x = 12,872.91

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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.