Home / 13,260.64-18,328.94-11,655.25

Finding the Fourth Proportional to 13,260.64, 18,328.94 and 11,655.25

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Solution

The fourth proportional to 13,260.64, 18,328.94 and 11,655.25 is: 16,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.64 : 18,328.94 = 11,655.25 : x
  2. Step 2: Convert to fraction form
    13,260.64/18,328.94 = 11,655.25/x
  3. Step 3: Cross multiply
    13,260.64x = 18,328.94 × 11,655.25
  4. Step 4: Simplify right side
    13,260.64x = 213,628,377.94
  5. Step 5: Solve for x
    x = 213,628,377.94/13,260.64
  6. Step 6: Final answer
    x = 16,109.96

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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.